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26004cd14fc8d369135763d6087acdfdcb553c752aaa1144ba7c453b80322bb5
2026-01-16T00:00:00-05:00
Bridging Quantum Mechanics to Organic Liquid Properties via a Universal Force Field
arXiv:2508.08575v4 Announce Type: replace Abstract: Molecular dynamics (MD) simulations are essential tools for unraveling atomistic insights into the structure and dynamics of condensed-phase systems. However, the universal and accurate prediction of macroscopic properties from ab initio calculations remains a signifi...
https://arxiv.org/abs/2508.08575
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19404649def198dc08e7d57930e7ce04d023839f84e867710d153bd4b4f51f22
2026-01-16T00:00:00-05:00
Physics-Informed Neural Networks for Nonlocal Beam Eigenvalue Problems
arXiv:2509.04321v2 Announce Type: replace Abstract: The present study investigates the dynamics of nonlocal beams by establishing a consistent stress-driven integral elastic using the Physics-Informed Neural Network (PINN) approach. Specifically, a PINN is developed to compute the first eigenfunction and eigenvalue ari...
https://arxiv.org/abs/2509.04321
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0ff5f6ea0f9d4cba5d5b7e3e0e6948b31f7f756e7691fd5875234c8fefd1dcde
2026-01-16T00:00:00-05:00
Detection of ultracold neutrons with powdered scintillator screens
arXiv:2509.04332v2 Announce Type: replace Abstract: Zinc sulfide (ZnS:Ag) scintillators coated with a thin 10B layer are widely used for ultracold neutron (UCN) detection, but their application is limited by long decay times and significant phosphorescence. We investigated two possible replacement scintillators: yttriu...
https://arxiv.org/abs/2509.04332
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463770b7c02f63f22ab22075eb5377c3d24b312ff1489586e7fbec1db269866e
2026-01-16T00:00:00-05:00
All-Order Wichmann and Kroll Contribution in Heavy Electronic and Exotic Atoms
arXiv:2509.08763v2 Announce Type: replace Abstract: We present a theoretical study of the Wichmann and Kroll correction to the one-loop vacuum polarization (VP) to all-orders in $\alpha Z$. We consider electronic, muonic, and antiprotonic atoms for a wide range of nuclear charge numbers and explicitly investigate the i...
https://arxiv.org/abs/2509.08763
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0d2087a8d2420e8020877d4c9a9d960e6bbb584ea219dcd28fdf827d4914f75a
2026-01-16T00:00:00-05:00
Systematic Study of Amorphous ABC Heterostructures at the Atomic Scale as a Second-Order Nonlinear Optical Metamaterial
arXiv:2509.21583v4 Announce Type: replace Abstract: Systematic exploration of amorphous ABC heterostructures revealed that nanoscale morphological modifications markedly improved their artificial bulk second-order susceptibility. These amorphous birefringent heterostructures were fabricated through plasma-enhanced atom...
https://arxiv.org/abs/2509.21583
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386d9c82c3ea1d6bd552a6d62213ddfd9cf9833a3b51b99d4c7c661f19adc1b2
2026-01-16T00:00:00-05:00
Correlation function metrology for warm dense matter: Recent developments and practical guidelines
arXiv:2510.00493v2 Announce Type: replace Abstract: X-ray Thomson scattering (XRTS) has emerged as a valuable diagnostic for matter under extreme conditions, as it captures the intricate many-body physics of the probed sample. Recent advances, such as the model-free temperature diagnostic of Dornheim et al. [Nat.Commun...
https://arxiv.org/abs/2510.00493
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a26adb9bc41ed6fe2a6278119a7d80c76933653c3f7c80b7ae45cad9b6995d3c
2026-01-16T00:00:00-05:00
Electronic phase-locking for three-color, two-pathway coherent control
arXiv:2510.08205v2 Announce Type: replace Abstract: We report a new method of two-pathway coherent control using three narrow-band cw laser sources, phase locked in an optical phase-lock loop, to maintain the high degree of optical coherence required for the coherent control process. In addition, we derive expressions ...
https://arxiv.org/abs/2510.08205
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e2a55db18f525ad3fbcb7d28369c1548aa2e79588ba35cebb1536c95c5ca1db6
2026-01-16T00:00:00-05:00
Detection of Earth's free oscillations utilizing TianQin
arXiv:2510.10107v2 Announce Type: replace Abstract: The measurement of Earth's free oscillations plays an important role in studying the Earth's large-scale structure. Space technology development presents a potential method to observe these normal modes by measuring inter-satellite distances. However, the disturbance ...
https://arxiv.org/abs/2510.10107
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ca686ceadc0bfc020b41d1a41203ab3ba0ab24a9b676de6fbc727e02ab223a34
2026-01-16T00:00:00-05:00
Unravelling inter-channel quantum interference in below-threshold nonsequential double ionization with statistical measures
arXiv:2510.16135v2 Announce Type: replace Abstract: We present a systematic study of interchannel quantum interference in laser-induced nonsequential double ionization (NSDI) within the strong-field approximation. Focusing on the below-threshold intensity regime where the recollision-excitation with subsequent ionizati...
https://arxiv.org/abs/2510.16135
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b66e3ecf783aa103cede16c17b0a2dd48fc7afad02464a97959f5910c88ce058
2026-01-16T00:00:00-05:00
Patch-MLP-Based Predictive Control: Simulation of Upstream Pointing Stabilization for PHELIX Laser System
arXiv:2510.26540v2 Announce Type: replace Abstract: High-energy laser facilities such as PHELIX at GSI require excellent beam pointing stability for reproducibility and relative independence for future experiments. Beam pointing stability has been traditionally achieved using simple proportional-integral-derivative (PI...
https://arxiv.org/abs/2510.26540
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8bf51a678f8457d1c078998b0a18dcc3c759f539f603f492528c35fe93c8eefe
2026-01-16T00:00:00-05:00
Transmission Efficiency of the Recoil Mass Spectrometer EMMA at TRIUMF
arXiv:2511.05643v2 Announce Type: replace Abstract: The mean transmission efficiency of the EMMA recoil mass spectrometer at TRIUMF has been measured with 6 different angular apertures at 17 kinetic energy/charge deviations with respect to the central, reference trajectory. Measurements performed using a 148Gd alpha so...
https://arxiv.org/abs/2511.05643
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21e5f6e6e15390801d395097baf05dd0f1f500f125789511c6b698a5d9c8d29c
2026-01-16T00:00:00-05:00
Canonical Clocks and Hidden Geometric Freedom in Self-Imaging
arXiv:2601.08020v2 Announce Type: replace Abstract: Self-imaging represents a core hallmark of paraxial (quadratic)-wave evolution; yet, across its many realizations and generalizations over the past two centuries, the uniformity of recurrence planes along the propagation axis has been considered fundamental. However, ...
https://arxiv.org/abs/2601.08020
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71cdb69cf719f0e618a16685e2e6af50c6d313257eb8a529f0e72e82265b4973
2026-01-16T00:00:00-05:00
Accelerating Density Fitting with Adaptive-precision and 8-bit Integer on AI Accelerators
arXiv:2601.08077v2 Announce Type: replace Abstract: The emergence of artificial intelligence (AI) accelerators like NVIDIA Tensor Cores offers new opportunities to speed up tensor-heavy scientific computations. However, applying them to quantum chemistry is challenging due to strict accuracy demands and irregular data ...
https://arxiv.org/abs/2601.08077
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f63f7863007c5670f4ffc26cade683bad2a833ea7dad0983f964d342973b7c26
2026-01-16T00:00:00-05:00
The 1/3 Geometric Constant: Scale Invariance and the Origin of "Missing Energy" in 3D Quantum Fragmentation
arXiv:2601.08255v2 Announce Type: replace Abstract: We report a fundamental geometric constraint on the detection of kinetic energy release (KER) in three-dimensional quantum fragmentation. By investigating the sudden dissociation of Slater-type orbitals, physically motivated basis for localized states, we demonstrate ...
https://arxiv.org/abs/2601.08255
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5371db2de3bbe28159625829cbd9b0b46e4bbf8d8a7b3509cb913e072be500b6
2026-01-16T00:00:00-05:00
Terahertz Communications Using Effective-Medium-Slot Waveguides
arXiv:2601.08261v2 Announce Type: replace Abstract: All-dielectric effective-medium-clad waveguides have been widely exploited in terahertz communications owing to their extremely low loss, low dispersion, and broad bandwidth. In this work, we propose a substrateless effective-medium-slot waveguide. Additionally, we in...
https://arxiv.org/abs/2601.08261
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5fdea6b99109b80eb8bd11e987874f46878c44fb0fafb26a8d10296e25f51a32
2026-01-16T00:00:00-05:00
Constraining axion-like dark matter with a radio-frequency atomic magnetometer
arXiv:2601.09638v2 Announce Type: replace Abstract: We report on a broadband search for axion-like-particle (ALP) interactions using a radio-frequency-operated $^{87}\mathrm{Rb}$ atomic magnetometer. The instrument provides wide spectral coverage and sensitivity to an oscillating pseudomagnetic field that may be genera...
https://arxiv.org/abs/2601.09638
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2b3eb7d5c1f20aa22db98251613983168f20e0b99d50b6741b7978df3d44d2e6
2026-01-16T00:00:00-05:00
Rotational state changes in collisions of diatomic molecular ions with atomic ions
arXiv:1905.02130v3 Announce Type: replace-cross Abstract: We investigate rotational state changes in a single collision of diatomic molecular ions, polar or apolar, with an atomic ion. Rotational state changes may occur since the angular degree of freedom of the molecular ions interacts with the electric field due to t...
https://arxiv.org/abs/1905.02130
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e24283cb640e95334e6d39f569d1a40d098eb020bad3a46974d2fa7b8de76497
2026-01-16T00:00:00-05:00
Theoretical Design of Effective Multilayer Optical Coatings Using Oxyhydride Thin Films
arXiv:2010.13502v2 Announce Type: replace-cross Abstract: Rare-earth metal oxyhydride compositions are currently attracting increasing attention to develop materials with unusual optical responses. Herein, using computer simulations of the electronic and optical properties, the optical responses of two stable yttrium o...
https://arxiv.org/abs/2010.13502
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847ae060f2e9dd7966a6fe7c21a00e9084dc8a9efe976119360cea80ada5fb2a
2026-01-16T00:00:00-05:00
Elastodynamical properties of Sturmian structured media
arXiv:2105.02548v2 Announce Type: replace-cross Abstract: In this paper, wave propagation in structured media with quasiperiodic patterns is investigated. We propose a methodology based on Sturmian sequences for the generation of structured mechanical systems from a given parameter. The approach is presented in a gener...
https://arxiv.org/abs/2105.02548
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d8cc353ca1b1e12289c63bb7856528be865d83766041f4b563f2ff8d0e67426d
2026-01-16T00:00:00-05:00
Rotational excitation in sympathetic cooling of diatomic molecular ions by laser-cooled atomic ions
arXiv:2410.22458v2 Announce Type: replace-cross Abstract: Sympathetic cooling of molecular ions through the Coulomb interaction with laser-cooled atomic ions is an efficient tool to prepare translationally cold molecules without, ideally, affecting the internal state of the molecular ions. However, the electric field d...
https://arxiv.org/abs/2410.22458
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585a15001fb53c177f00e3030bb32ed02d5587ab9a707ce0765248e24b2b8187
2026-01-16T00:00:00-05:00
Predicting the suitability of photocatalysts for water splitting using Koopmans spectral functionals: The case of TiO$_2$ polymorphs
arXiv:2412.17488v2 Announce Type: replace-cross Abstract: Photocatalytic water splitting has attracted considerable attention for renewable energy production. Since the first reported photocatalytic water splitting by titanium dioxide, this material remains one of the most promising photocatalysts, due to its suitable ...
https://arxiv.org/abs/2412.17488
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6d565e8f3ee09624ca67815e3bae5a2a9c3999aa03f0b057df23991e7be367e8
2026-01-16T00:00:00-05:00
Cavity-QED Simulation of a Maser beyond the Mean-Field Approximation
arXiv:2412.21166v3 Announce Type: replace-cross Abstract: Based on the well-known Tavis-Cummings (TC) model of cavity quantum electrodynamics (QED), we introduce a method for quantum-mechanically simulating the dynamics of experimental masers beyond the mean-field approximation (MFA) that takes into account the spatial...
https://arxiv.org/abs/2412.21166
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729192d7318d361de9cb7def44afc0d745557e0348771893faf983f6b924f554
2026-01-16T00:00:00-05:00
Time-domain extreme ultraviolet diffuse scattering spectroscopy of nanoscale surface phonons
arXiv:2502.18445v4 Announce Type: replace-cross Abstract: We report the observation of dynamic fringe patterns in the diffuse scattering of extreme ultraviolet light from surfaces, following femtosecond optical excitation. At each point on the detector, the diffuse scattering intensity exhibits oscillations at well-def...
https://arxiv.org/abs/2502.18445
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8be0fc15b92be25116c9ca782dfd64bf7b9325e6a037aed962406bcfa63dfb21
2026-01-16T00:00:00-05:00
Nonadiabatic H-Atom Scattering Channels on Ge(111) Elucidated by the Hierarchical Equations of Motion
arXiv:2509.16916v2 Announce Type: replace-cross Abstract: Atomic and molecular scattering at semiconductor interfaces plays a central role in surface chemistry and catalysis, yet predictive simulations remain challenging due to strong nonadiabatic effects causing the breakdown of the Born-Oppenheimer approximation. Her...
https://arxiv.org/abs/2509.16916
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ae6bd401b2735f9e1499ffeb7f3967a6ef983bcd0518e3fa77bf712d90feff2f
2026-01-16T00:00:00-05:00
Graphical C(3)-T(6) implies CAT(0)
arXiv:2601.09751v1 Announce Type: new Abstract: Graphical small cancellation extends the classical small cancellation theory and provides a powerful method for constructing groups with interesting features. In the classical setting, C(3)-T(6) small cancellation complexes are known to admit locally CAT(0) metrics. In th...
https://arxiv.org/abs/2601.09751
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0f910662c53b26656978a7ea254c5ff66190b8f5b5278ecf41929fc5e3f43021
2026-01-16T00:00:00-05:00
Structure and Decomposition of Deltoids in Abelian Groups
arXiv:2601.09774v1 Announce Type: new Abstract: Deltoids provide a natural framework for studying defective (partial) matchings in abelian groups, and we develop both structure and existence results in this setting. Given finite subsets $A$ and $B$ of an abelian group $G$, a matching is a bijection $f:A\to B$ such that...
https://arxiv.org/abs/2601.09774
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1221de64ffcff47df0b200c22762435cff778cf2667451d8e96f4230e1008c92
2026-01-16T00:00:00-05:00
Witt affine Springer theory
arXiv:2601.09798v1 Announce Type: new Abstract: This paper extends the affine Springer theory developed by Bouthier, Kazhdan, and the second author (see [BKV]) to the mixed characteristic case. In particular, we introduce a theory of perfectly placid perfect infinity stacks and establish their dimension theory. Further...
https://arxiv.org/abs/2601.09798
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3ea8ea9d619dfe4bdf64f3c36f76d5d90d9eee6a62e6ef910e078ed25e4df551
2026-01-16T00:00:00-05:00
Spectral projections of an anharmonic oscillator with complex polynomial potential
arXiv:2601.09800v1 Announce Type: new Abstract: For a broad class of polynomial potentials $V$, with an important and instructive representative being $V(x) = x^{2a} + i x^b$, $x \in \mathbb R$, $a, b \in \mathbb N$, we show that the system of spectral projections $\{P_n\}_n$ of an anharmonic operator $L = - (\mathrm{d...
https://arxiv.org/abs/2601.09800
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f50e46c4ecdf1750908d90add14b448c8925ea5a9b58fafe589b9018965bf582
2026-01-16T00:00:00-05:00
Kostant cuspidal permutations
arXiv:2601.09824v1 Announce Type: new Abstract: In relation to Kostant's problem for simple highest weight modules over the general linear Lie algebra, we prove a persistence result for Kostant negative consecutive patterns. Inspired by it, we introduce the notion of a Kostant cuspidal permutation as a minimal Kostant ...
https://arxiv.org/abs/2601.09824
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5dabad174d91e5fdbeff77491c30725760353bdb9d257b5121cd6775c8cb6762
2026-01-16T00:00:00-05:00
When an Approximate Model Suffices for Optimal Control
arXiv:2601.09826v1 Announce Type: new Abstract: In this paper, we develop an optimal control framework for dynamical systems when only an approximate model of the underlying plant is available. We consider a setting in which the control strategy is synthesized using a model-based optimal control problem that includes a...
https://arxiv.org/abs/2601.09826
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6783dbedd0d0c24a2ec9ae8d404758ef871c4876925d103fe9549e5597400cc9
2026-01-16T00:00:00-05:00
A note on absolutely minimal extensions in finite metric spaces
arXiv:2601.09840v1 Announce Type: new Abstract: Absolutely minimal Lipschitz extensions (AMLEs) are known to exist in many infinite metric settings, but the finite case is less settled. In metric spaces with at most four points, every function on a nonempty subset admits an AMLE in the sense that the Lipschitz constant...
https://arxiv.org/abs/2601.09840
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c608546c62374e86904916e9896e03ddf08b731d8d494f3b5cc0c95082b458c2
2026-01-16T00:00:00-05:00
Non-commutative Factor theorem for tensor products of lattices in product groups
arXiv:2601.09875v1 Announce Type: new Abstract: We establish a non-commutative version of the Intermediate Factor Theorem for crossed products associated with product lattices. Given an irreducible lattice $\Gamma < G= G_1 \times \dots \times G_d$ in higher rank semisimple algebraic groups and a trace-preserving irredu...
https://arxiv.org/abs/2601.09875
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465066ca033e1ccb43b53baafbd5dc541e76e961b51c36672ae06d00ff9cba6f
2026-01-16T00:00:00-05:00
Asymptotic Stability and Equilibrium Selection in Quasi-Feller Systems with Minimal Moment Conditions
arXiv:2601.09880v1 Announce Type: new Abstract: We study equilibrium selection for invariant measures of stochastic dynamical systems with constant step size, under persistent noise and minimal moment assumptions, in a general quasi-Feller framework. Such dynamics arise in projection-based algorithms, learning in games...
https://arxiv.org/abs/2601.09880
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e58d28841d2f529601fea4d7257b56bab684d7b0595d29cafd2450398ccb6847
2026-01-16T00:00:00-05:00
Multiplicity one for equivariant min-max theory in prescribed homology classes
arXiv:2601.09884v1 Announce Type: new Abstract: For a closed Riemannian manifold $M$ with a compact Lie group $G$ acting by isometries, we show a generic multiplicity one theorem in equivariant min-max theory, and show in generic sense that there are infinitely many $G$-invariant minimal hypersurfaces in a fixed $G$-ho...
https://arxiv.org/abs/2601.09884
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3d9c196280875e0847776b5030a7e2ffd1591144471c13c018878178816fd214
2026-01-16T00:00:00-05:00
Graphs of Quasicircles and Quasiconformal Homeomorphisms
arXiv:2601.09892v1 Announce Type: new Abstract: We give a combinatorial characterization of the group of quasiconformal homeomorphisms of a closed, oriented surface $S$ of genus at least $2$. In particular, we prove they are exactly the automorphisms of a graph of essential quasicircles on $S$ that respect a canonical ...
https://arxiv.org/abs/2601.09892
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30cbc1439a331968647ff761983b524dffbe4eb602aa24df8e9aeee6881a49aa
2026-01-16T00:00:00-05:00
Complex Monge-Amp\`ere equation in Orlicz space and Diameter Bound
arXiv:2601.09893v1 Announce Type: new Abstract: In this paper, we establish diameter bounds for compact K\"ahler manifolds equipped with K\"ahler metrics $\omega$, assuming the associated measure lies in a specific Orlicz space and satisfies an integrability condition. Firstly, we prove a priori estimates for solutions...
https://arxiv.org/abs/2601.09893
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ad9222efe6fa7e57ba58b1bea6691cc036dd539401921d8739fd6ca9a9e20e2e
2026-01-16T00:00:00-05:00
Lossless Strichartz estimates on the square torus over short time intervals
arXiv:2601.09895v1 Announce Type: new Abstract: We prove lossless Strichartz estimates at the critical exponent $q_c = \frac{2(n+1)}{n-1}$ on the square torus for the Schr\"{o}dinger equation with frequency localized initial data on small time windows with length depending on the frequency parameter $\lambda \gg 1$.
https://arxiv.org/abs/2601.09895
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a03671335c7aba373be107b7d5146c8d4660a6c82677fa0c04d00e6aa902b762
2026-01-16T00:00:00-05:00
Birman-Hilden theory for big mapping class groups
arXiv:2601.09897v1 Announce Type: new Abstract: Let $S$ and $X$ be two connected topological surfaces without boundary, and assume that $S$ is either of infinite type or has negative Euler characteristic. In this paper, we prove that if $p:S\rightarrow X$ is a fully ramified branched covering map, then $p$ satisfies th...
https://arxiv.org/abs/2601.09897
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30b7161e6abb8b048fbc1352ac1c8b30c9059e5f427d5dd923cc58e5f16a07db
2026-01-16T00:00:00-05:00
The Morse Local-to-Global Property for Graph Products
arXiv:2601.09901v1 Announce Type: new Abstract: The Morse local-to-global property generalizes the local-to-global property for quasi-geodesics in a hyperbolic space. We show that graph products of infinite Morse local-to-global groups have the Morse local-to-global property. To achieve this, we generalize the maximiza...
https://arxiv.org/abs/2601.09901
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2a5d5d965d418231244f0e3832a813fcc76c47873db2826df48b0a3e9aae321e
2026-01-16T00:00:00-05:00
A note on invariants of mixed-state topological order in 2D
arXiv:2601.09909v1 Announce Type: new Abstract: The classification of mixed-state topological order requires indices that behave monotonically under finite-depth quantum channels. In two dimensions, a braided $C^*$-tensor category, which corresponds to strong symmetry, arises from a state satisfying approximate Haag du...
https://arxiv.org/abs/2601.09909
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72a3e6185ddf57c308bd6c48504a42226d208eac2daa74c5f39374f08c1e6321
2026-01-16T00:00:00-05:00
Cylinder type and $p$-divisible sets in $\mathbb{F}_p^3$
arXiv:2601.09910v1 Announce Type: new Abstract: A set of points $S \subseteq \mathbb{F}_p^n$ is called \emph{$p$-divisible} if every affine hyperplane in $\mathbb{F}_p^n$ intersects $S$ in $0 \pmod p$ points. The Strong Cylinder Conjecture of Ball asserts that if $S$ is a $p$-divisible set of $p^2$ points in $\mathbb{F...
https://arxiv.org/abs/2601.09910
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0831e52bc0737f2d15ae9d8f497af4a1432afb4350e15b7a69c6cd5932dd11c8
2026-01-16T00:00:00-05:00
On the Dirichlet boundary value problem on Cartan-Hadamard manifolds
arXiv:2601.09930v1 Announce Type: new Abstract: In this paper, we investigate the Dirichlet boundary value problem on Cartan-Hadamard manifolds, focusing on the non-existence of bounded (viscosity) solutions to semi-linear elliptic equations of the form $\Delta u + f(u) = 0$ in domains with prescribed asymptotic bounda...
https://arxiv.org/abs/2601.09930
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e2763cbded177c17db403fcb16fe26ce0db2a79a7ce10300cbb0c93c038ae043
2026-01-16T00:00:00-05:00
Algebras of distributions suitable for phase-space quantum mechanics. II. Topologies on the Moyal algebra
arXiv:2601.09934v1 Announce Type: new Abstract: The topology of the Moyal $*$-algebra may be defined in three ways: the algebra may be regarded as an operator algebra over the space of smooth declining functions either on the configuration space or on the phase space itself; or one may construct the $*$-algebra via a f...
https://arxiv.org/abs/2601.09934
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73ea55133abeb805c137f53d0b606f97f79ba9caf34e56dfc18019bc3f32e530
2026-01-16T00:00:00-05:00
Epstein surfaces for $G-$opers
arXiv:2601.09936v1 Announce Type: new Abstract: Given a complex semisimple Lie group $G$, we introduce the notion of an Epstein surface associated to a $G$-oper. These surfaces generalize Epstein's classical construction for $G=PGL_2 (\mathbb{C})$. As an application, we provide a criterion that ensures that the holonom...
https://arxiv.org/abs/2601.09936
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cf903a684e37e5612a56d910428d82d647c14dcbeadf2b5328fef3d38ec6a3d4
2026-01-16T00:00:00-05:00
On Schur Rings Over Semigroups
arXiv:2601.09940v1 Announce Type: new Abstract: We generalize the idea of a Schur ring of a group to the category of semigroups. Fundamental results of Schur rings over groups are shown to be true for Schur rings over semigroups. Examples where Schur rings differ between the two categories are provided. We prove some r...
https://arxiv.org/abs/2601.09940
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64d33cef65b004c772c96b98226c2023c4decc889e42225fd75e84b7225bd11a
2026-01-16T00:00:00-05:00
Quantitative Supercritical Bounds for Disconnection in Bernoulli Site Percolation
arXiv:2601.09950v1 Announce Type: new Abstract: For any infinite, connected, locally finite graph $G=(V,E)$, any parameter $p>p^{\mathrm{site}}_{c}(G)$, and any (finite or infinite) set of vertices $S\subset V$, we derive explicit exponential-type upper bounds on the disconnection probability $\mathbb{P}_{p}(S\nleftrig...
https://arxiv.org/abs/2601.09950
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c028f07d1be1447b18948d34c57750af868f6870e4d531bf81d2b43d2b06b670
2026-01-16T00:00:00-05:00
Directed strongly regular graphs and divisible design graphs from Tatra association schemes
arXiv:2601.09955v1 Announce Type: new Abstract: In this paper, we construct directed strongly regular graphs and divisible design graphs with new parameters merging some basic relations of so-called Tatra associations schemes. We also study the above association schemes, their fusions and isomorphisms.
https://arxiv.org/abs/2601.09955
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00c1a13af40ea50a8f91a7fd8f58588590dc8fdb54d50f7c24e70897d7e8b5a5
2026-01-16T00:00:00-05:00
The Galois Structure of the Spaces of polydifferentials on the Drinfeld Curve
arXiv:2601.09956v1 Announce Type: new Abstract: Let $C$ be a smooth projective curve over an algebraically closed field ${\mathbb{F}}$ equipped with the action of a finite group $G$. When $p =\textrm{char}(\mathbb{F})$ divides the order of $G$, the long-standing problem of computing the induced representation of $G$ on...
https://arxiv.org/abs/2601.09956
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ca8e2e96c92a5598e535d3236032df7da2039501a220c18f85d13e88c516834f
2026-01-16T00:00:00-05:00
Planar Site Percolation, End Structure, and the Benjamini-Schramm Conjecture
arXiv:2601.09958v1 Announce Type: new Abstract: Let $G$ be an infinite, connected, locally finite planar graph and consider i.i.d.\ Bernoulli$(p)$ site percolation. Write $p_c^{\mathrm{site}}(G)$ and $p_u^{\mathrm{site}}(G)$ for the critical and uniqueness thresholds. Using a well--separated Freudenthal embedding $G\ho...
https://arxiv.org/abs/2601.09958
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2be2cec5eb158b0088eb94e06f0d08f202e3951740de3a1219069772c9faa811
2026-01-16T00:00:00-05:00
Probabilistic heterogeneous Stirling numbers and Bell polynomials
arXiv:2601.09964v1 Announce Type: new Abstract: Let Y be a random variable satisfying specific moment conditions. This paper introduces and investigates probabilistic heterogeneous Stirling numbers of the second kind and probabilistic heterogeneous Bell polynomials. These structures unify several classical and probabil...
https://arxiv.org/abs/2601.09964
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73c981f1b4defd0ef3f29149c25aa1201cc4857299ffa65252be2adaed84cd96
2026-01-16T00:00:00-05:00
Stochastic Calculus for Rough Fractional Brownian Motion via Operator Factorization
arXiv:2601.09967v1 Announce Type: new Abstract: We develop an operator-theoretic framework for stochastic calculus with respect to rough fractional Brownian motion with Hurst parameter H < 1/2. Building on a covariant derivative defined via kernel factorization, we construct a closed unbounded operator on L2(Omega) ada...
https://arxiv.org/abs/2601.09967
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917dec14ec294e18bb262db9d39231e42f160964f5863a882d8a43ad6c3bd445
2026-01-16T00:00:00-05:00
Einstein and Yang-Mills implies conformal Yang-Mills
arXiv:2601.09975v1 Announce Type: new Abstract: There exist conformally invariant, higher-derivative, variational analogs of the Yang-Mills condition for connections on vector bundles over a conformal manifold of even dimension greater than or equal to six. We give a compact formula for these analogs and prove that the...
https://arxiv.org/abs/2601.09975
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9a3b768a085474c54fc8783d472d3bad6ee780c42bdd5e4539ea84a714c4490d
2026-01-16T00:00:00-05:00
Stochastic Calculus as Operator Factorization
arXiv:2601.09976v1 Announce Type: new Abstract: We present a unified operator-theoretic formulation of stochastic calculus based on two principles: fluctuations factor through differentiation, predictable projection, and integration, and the appropriate stochastic derivative is the Hilbert adjoint of the stochastic int...
https://arxiv.org/abs/2601.09976
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8c060b0cd64d86e81dc357f07f4c5c45ad09a2dc6e2f70ba8dfa7b3bc323e2be
2026-01-16T00:00:00-05:00
Polynomially effective equidistribution for unipotent orbits in products of $\mathrm{SL}_2$ factors
arXiv:2601.09983v1 Announce Type: new Abstract: We sketch the proof of an effective equidistribution theorem for one-parameter unipotent subgroups in $S$-arithmetic quotients arising from $\mathbf K$-forms of $\mathrm{SL}_2^{\mathsf n}$ where $\mathbf K$ is a number field. This gives an effective version of equidistrib...
https://arxiv.org/abs/2601.09983
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26380fec8d6a9248d8fa7b5126d74b3176b0e7fc15bbf23c4ff60650470d9958
2026-01-16T00:00:00-05:00
Remarks on the convex integration technique applied to singular stochastic partial differential equations
arXiv:2601.09990v1 Announce Type: new Abstract: Singular stochastic partial differential equations informally refer to the partial differential equations with rough random force that leads to the products in the nonlinear terms becoming ill-defined. Besides the theories of regularity structures and paracontrolled distr...
https://arxiv.org/abs/2601.09990
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388d9227b9ec8a5c480803dcf198baa31a549873830b7d595be45c135ccb1949
2026-01-16T00:00:00-05:00
On directional second-order tangent sets of analytic sets and applications in optimization
arXiv:2601.09991v1 Announce Type: new Abstract: In this paper we study directional second-order tangent sets of real and complex analytic sets. For an analytic set $X\subseteq\mathbb{K}^n$ and a nonzero tangent direction $u\in T_0X$, we compare the geometric second-order tangent set $T^2_{0,u}X$, defined via second-ord...
https://arxiv.org/abs/2601.09991
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763143b7ded071fd1fa4752e16b29a7d79ea9711f8904a1c946d03689d9206b3
2026-01-16T00:00:00-05:00
M\"obius-Type Structures in Non-Orientable Singular Semi-Riemannian Manifolds
arXiv:2601.10009v1 Announce Type: new Abstract: Our objective is to illuminate the global structure of non-orientable manifolds with signature-changing metrics. Using explicit constructions based on the topology of the M\"{o}bius strip, we produce examples of crosscap manifolds where the gluing junction serves as the l...
https://arxiv.org/abs/2601.10009
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b92ab1d7c1412c3635cd0d34c7b8ef00204b4bc5a4f88fd06cd185500d4e4488
2026-01-16T00:00:00-05:00
On the Sasakian Structure of Manifolds with Nonnegative Transverse Bisectional Curvature
arXiv:2601.10017v1 Announce Type: new Abstract: In this paper, we concern with the Sasaki analogue of Yau uniformization conjecture in a complete noncompact Sasakian manifold with nonnegative transverse bisectional curvature. As a consequence, we confirm that any $5$-dimensional complete noncompact Sasakian manifold wi...
https://arxiv.org/abs/2601.10017
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7541b21eb92529814e1a615b269024d2059c72e05ea29bb566ecd8cb9ebb39a2
2026-01-16T00:00:00-05:00
An introduction to weightings along submanifolds
arXiv:2601.10021v1 Announce Type: new Abstract: This article is based on a talk given at the Ghent Geometric Analysis Seminar in 2023. We review basic notions from the theory of weightings along submanifolds, with special emphasis on multiplicative weightings for Lie groupoids along subgroupoids.
https://arxiv.org/abs/2601.10021
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76a90336c9309297ee11c32c8c2d349e5ed4f70d651999749db93dc42540e700
2026-01-16T00:00:00-05:00
A New Overture to Classical Simple Type Theory, Ketonen-type Gentzen and Tableau Systems
arXiv:2601.10026v1 Announce Type: new Abstract: In this paper, we introduce a Ketonen-type Gentzen-style classical simple type theory $\bf KCT$. Also the tableau system $\bf KCTT$ corresponding to $\bf KCT$ is introduced. Further inference-preserving Gentzen system $\bf KCT_h$ (equivalent to $\bf KCT$) and tableau syst...
https://arxiv.org/abs/2601.10026
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8a41442185d7fc7e5af02e6b27459e198f17c1f38132dc7c035084564fab77e0
2026-01-16T00:00:00-05:00
Stability and instability of small BGK waves
arXiv:2601.10030v1 Announce Type: new Abstract: The aim of this article is to prove that the linear stability or instability of small Bernstein-Green-Kruskal (BGK) waves is determined by the sign of the derivative of their energy distributions at $0$ energy.
https://arxiv.org/abs/2601.10030
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66cae65ae58a580a97cd5fe6c9046509df874881192d019baf558017443378ae
2026-01-16T00:00:00-05:00
Convex combination of first and second eigenvalues of trees
arXiv:2601.10036v1 Announce Type: new Abstract: For a graph $G$, let $\lambda_1(G)$ and $\lambda_2(G)$ denote the largest and the second largest adjacency eigenvalue of $G$. The sum $\lambda_1(G) + \lambda_2(G)$ is called the \emph{spectral sum} of $G$. We investigate the spectral sum of trees of order $n$ and determin...
https://arxiv.org/abs/2601.10036
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069088ec77187ba12ca31ddcac6f54e74579e8e5caccf3b07d7e9e0d54fb8bef
2026-01-16T00:00:00-05:00
Recurrence relations for the coefficients of the confluent and Gauss hypergeometric functions in the complex plane
arXiv:2601.10040v1 Announce Type: new Abstract: For $a,b,c,z,p, \theta \in \mathbb{C}$, where $\mathbb{C}$ is the complex plane, $-c\notin \mathbb{N\cup }\left\{ 0\right\} $, let \begin{equation*} \mathcal{M}\left( z\right) =\left( 1-\theta z\right) ^{p}M\left(a;c;z\right) =\sum_{n=0}^{\infty }u_{n}z^{n}, \end{equation...
https://arxiv.org/abs/2601.10040
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627158d1069fec4cbe7cef122e7fdc939e1e3589fc33dfcd947e273d4b205f25
2026-01-16T00:00:00-05:00
A note on exact approximations
arXiv:2601.10051v1 Announce Type: new Abstract: Based on M. Hall's theorem we prove a simple result dealing with real numbers which admit exact approximations by rationals.
https://arxiv.org/abs/2601.10051
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33f304c1047e9e2705fac2890995a44cf7e082a5af8f5a8d5356b631f37590a5
2026-01-16T00:00:00-05:00
Kov\'acs' conjecture on characterisation of projective space and hyperquadrics
arXiv:2601.10055v1 Announce Type: new Abstract: We prove Kov\'acs' conjecture that claims that if the $p^{th}$ exterior power of the tangent bundle of a smooth complex projective variety contains the $p^{th}$ exterior power of an ample vector bundle then the variety is either projective space or the $p$-dimensional qua...
https://arxiv.org/abs/2601.10055
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d272c7f1e8431626f06325e212de117427e453473b2bb9b10f576ddcbd9c7c8e
2026-01-16T00:00:00-05:00
Global convergence of the subgradient method for robust signal recovery
arXiv:2601.10062v1 Announce Type: new Abstract: We study the subgradient method for factorized robust signal recovery problems, including robust PCA, robust phase retrieval, and robust matrix sensing. These objectives are nonsmooth and nonconvex, and may have unbounded sublevel sets, so standard arguments for analyzing...
https://arxiv.org/abs/2601.10062
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e94664ccf8712813740b25ba47934d5ddb014252ca2fb73875d0bbefedfc9816
2026-01-16T00:00:00-05:00
Transport equation theory in the Triebel-Lizorkin spaces and its applications to the ideal fluid flows
arXiv:2601.10071v1 Announce Type: new Abstract: In this paper, we develop a general theory for the transport equation within the framework of Triebel-Lizorkin spaces. We first derive commutator estimates in these spaces, dispensing with the conventional divergence-free condition, via the Bony paraproduct decomposition ...
https://arxiv.org/abs/2601.10071
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e25291a7f6e0b0e5982519f50841d02c30070037d985b2e204eb3b8bcefedb90
2026-01-16T00:00:00-05:00
Simplicial spheres with $g_k=1$
arXiv:2601.10072v1 Announce Type: new Abstract: For $d\geq 4$, Kalai (1987) characterized all simplicial $(d-1)$-spheres with $g_2=0$, and for $k\geq 2$ and $d\geq 2k$, Murai and Nevo (2013) characterized all simplicial $(d-1)$-spheres with $g_k=0$. In addition, for $d\geq 4$, Nevo and Novinsky (2011) characterized all...
https://arxiv.org/abs/2601.10072
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0ce34a210d1be2c67e404f48d5ba293e13539b434ef9376b2c1a1e2fc6902cd7
2026-01-16T00:00:00-05:00
Sharp propagation of chaos in R\'enyi divergence
arXiv:2601.10076v1 Announce Type: new Abstract: We establish sharp rates for propagation of chaos in R\'enyi divergences for interacting diffusion systems at stationarity. Building upon the entropic hierarchy established in Lacker (2023), we show that under strong isoperimetry and weak interaction conditions, one can a...
https://arxiv.org/abs/2601.10076
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6941a034e453e9617bd9382706ca66852d4959d68e2d7a919413d0ba9d2e4084
2026-01-16T00:00:00-05:00
A $p$-adic interpolation of the Cogdell lift
arXiv:2601.10077v1 Announce Type: new Abstract: In this paper we obtain several results related to the $p$-adic interpolation of the classical Cogdell lift, mapping special cycles on Picard modular surfaces to elliptic modular forms. The results have a three-fold nature: in the first part of the paper, we $p$-adically ...
https://arxiv.org/abs/2601.10077
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ce32896b4b5582f30e7b110f1d46af6277e09959c6fe40a571fa274d538aa238
2026-01-16T00:00:00-05:00
Line-search and Adaptive Step Sizes for Nonconvex-strongly-concave Minimax Optimization
arXiv:2601.10086v1 Announce Type: new Abstract: In this paper, we propose a novel reformulation of the smooth nonconvex-strongly-concave (NC-SC) minimax problems that casts the problem as a joint minimization. We show that our reformulation preserves not only first-order stationarity, but also global and local optimali...
https://arxiv.org/abs/2601.10086
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2f33281941527882ce4c502299da35237e9763f80b7afc25c42f89aa657a16cf
2026-01-16T00:00:00-05:00
Admissibility Breakdown in High-Dimensional Sparse Regression with L1 Regularization
arXiv:2601.10100v1 Announce Type: new Abstract: The choice of the tuning parameter in the Lasso is central to its statistical performance in high-dimensional linear regression. Classical consistency theory identifies the rate of the Lasso tuning parameter, and numerous studies have established non-asymptotic guarantees...
https://arxiv.org/abs/2601.10100
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2d7fa40841c60fb70690d707e8a8855ec9ebe99ee29627b33cbd7677d5afac4c
2026-01-16T00:00:00-05:00
Fano threefolds of genus 12 with large automorphism group in positive and mixed characteristic
arXiv:2601.10106v1 Announce Type: new Abstract: We study prime Fano threefolds of genus 12 ($V_{22}$-varieties) with positive-dimensional automorphism groups in positive and mixed characteristic. We classify such varieties over any perfect field. In particular, we prove that $V_{22}$-varieties of Mukai-Umemura type ove...
https://arxiv.org/abs/2601.10106
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997178762bc50f3d1b3a880771543074f49ed512ffc1473e57d1bd04c996f379
2026-01-16T00:00:00-05:00
Shifted bilinear sums of Sali\'e sums and the distribution of modular square roots of shifted primes
arXiv:2601.10113v1 Announce Type: new Abstract: We establish various upper bounds on Type-I and Type-II shifted bilinear sums with Sali\'e sums modulo a large prime $q$. We use these bounds to study, for fixed integers $a,b\not \equiv 0 \bmod q$, the distribution ofsolutions to the congruence $x^2 \equiv ap+b \bmod q$,...
https://arxiv.org/abs/2601.10113
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07534bf20c363e340458e29b16f49697643fe9bdcba33535fd54d38776515070
2026-01-16T00:00:00-05:00
Calabi affine maximal surfaces and centroaffine Bernstein problems
arXiv:2601.10125v1 Announce Type: new Abstract: Motivated by Calabi's calculation of the second variation sign for locally strongly convex affine maximal surfaces in equiaffine geometry, we first prove that every Calabi extremal surface is also maximal in the Calabi affine geometry. By employing suitably chosen orthono...
https://arxiv.org/abs/2601.10125
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cee318c19dcc2ecf45aaa2804e079f83835ff8968ca328733cea317b30f5b5f9
2026-01-16T00:00:00-05:00
Curvature-driven manifold fitting under unbounded isotropic noise
arXiv:2601.10133v1 Announce Type: new Abstract: Manifold fitting aims to reconstruct a low-dimensional manifold from high-dimensional data, whose framework is established by Fefferman et al. \cite{fefferman2020reconstruction,fefferman2021reconstruction}. This paper studies the recovery of a compact $C^3$ submanifold $\...
https://arxiv.org/abs/2601.10133
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e4e5f4df06f89203bef50349bb928b013792c29e934323301191f1b3f83739f7
2026-01-16T00:00:00-05:00
A new contraction principle on the perimeters of triangles and related results
arXiv:2601.10138v1 Announce Type: new Abstract: In this article, we introduce a new type of mapping contracting perimeters of triangles in a complete metric space and present related fixed point theorem. We study the metric completeness property of the underlying space in terms of fixed point of our newly introduced ma...
https://arxiv.org/abs/2601.10138
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562df49b929106cade72ac02c90b8ed617f8444e3623666c09e7087c219a4a5a
2026-01-16T00:00:00-05:00
On Quaternionic Fock Spaces: Kernel-induced Integral Operators, Berezin Transforms and Toeplitz Operators
arXiv:2601.10162v1 Announce Type: new Abstract: In this paper, we study quaternionic Fock spaces and develop an operator-theoretic framework centered around kernel-induced integral operators, Berezin transforms and Toeplitz operators. More precisely, the following results are obtained: (i) Global quaternionic Fock stru...
https://arxiv.org/abs/2601.10162
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d3a2c8f70bd6237170e83a1f1ffc54c5b1428277eb1c18583bc9bd6f96eaf64b
2026-01-16T00:00:00-05:00
Advances on two spectral conjectures regarding booksize of graphs
arXiv:2601.10163v1 Announce Type: new Abstract: The \emph{booksize} $ \mathrm{bk}(G) \) of a graph $ G $, introduced by Erd\H{o}s, refers to the maximum integer $ r $ for which $G$ contains the book $ B_r $ as a subgraph. This paper investigates two open problems in spectral graph theory related to the booksize of grap...
https://arxiv.org/abs/2601.10163
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a60afbe37d3766707ef2bfc276cef9ffddbdb94fd7cbb8ca98ac765938641e25
2026-01-16T00:00:00-05:00
Characteristics of drift effects in the quasi-geostrophic equation arising from nonlinear symmetry
arXiv:2601.10185v1 Announce Type: new Abstract: This paper compares two similar diffusion equations that appear in meteorology. One is the quasi-geostrophic equation, and the other is the convection-diffusion equation. Both are two-dimensional bilinear equations, and the order of differentiation is the same. Naturally,...
https://arxiv.org/abs/2601.10185
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752c200a8d5dea36b8b3db65862169128189dd5d2386945dc860fb15f6a1d792
2026-01-16T00:00:00-05:00
Outlier eigenvalues and eigenvectors of generalized Wigner matrices with finite-rank perturbations
arXiv:2601.10204v1 Announce Type: new Abstract: A generalized Wigner matrix perturbed by a finite-rank deterministic matrix is considered. The fluctuations of the largest eigenvalues, which emerge outside the bulk of the spectrum, and the corresponding eigenvectors, are studied. Under certain assumptions on the perturb...
https://arxiv.org/abs/2601.10204
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0ada95684754788e7d53f1453a9e4556682720c0f548162776ad99535defc9b3
2026-01-16T00:00:00-05:00
Biharmonic and Interpolating Sesqui-Harmonic Vector Fields with Respect to the varphi-Sasakian Metric
arXiv:2601.10216v1 Announce Type: new Abstract: This work investigates biharmonic and interpolating sesqui-harmonic vector fields on the tangent bundle of a para-K\"ahler--Norden manifold (M, varphi, g) endowed with the varphi-Sasaki metric. We derive the first variation of the bienergy and interpolating sesqui-energy ...
https://arxiv.org/abs/2601.10216
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a2ba9a949c5ffaeb2247e6a0c4c8ee934c47b9143d0110e6f1000ad2d96507c5
2026-01-16T00:00:00-05:00
Nuclear Toeplitz operators between Fock spaces
arXiv:2601.10217v1 Announce Type: new Abstract: We study Toeplitz operators with measure-valued symbols acting between Fock spaces. Given $1\le p,q\le\infty$ and a Borel measure $\mu$ on $\mathbb C$, we investigate when the associated Toeplitz operator \[ T_\mu : F^p_\alpha \to F^q_\alpha \] belongs to the nuclear clas...
https://arxiv.org/abs/2601.10217
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3b99dc62f09cf59210ea7bda7417ea6d29c7730450432fe418258f419d302eb0
2026-01-16T00:00:00-05:00
Unrefinable Partitions into Distinct Parts and Numerical Semigroups
arXiv:2601.10227v1 Announce Type: new Abstract: This article investigates structural connections between unrefinable partitions into distinct parts and numerical semigroups. By analysing the hooksets of Young diagrams associated with numerical sets, new criteria for recognising unrefinable partitions are established. A...
https://arxiv.org/abs/2601.10227
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9802ca5b30ec1ab181b72c5986c9e01a5822ac986d2061dd3ec7af0abde657e8
2026-01-16T00:00:00-05:00
Inconsistency of Reinhardt cardinals with $\mathsf{ZF}$
arXiv:2601.10231v1 Announce Type: new Abstract: A proof will be presented that the existence of a non-trivial $\Sigma_1$-elementary embedding $j: V_{\lambda+3} \prec V_{\lambda+3}$ is inconsistent with $\textsf{ZF}$. Sections 1 and 2 shall review various important contributions from the literature, notably including \c...
https://arxiv.org/abs/2601.10231
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6d578b47d0cb91336cf2d7fa5ffa8f679bdd522fde5d3bf30fe8fa9be87d5f2c
2026-01-16T00:00:00-05:00
Synchronization and Hopf Bifurcation in Stuart--Landau Networks
arXiv:2601.10234v1 Announce Type: new Abstract: The Kuramoto model has shaped our understanding of synchronization in complex systems, yet its phase-only formulation neglects amplitude dynamics that are intrinsic to many oscillatory networks. In this work, we revisit Kuramoto-type synchronization through networks of St...
https://arxiv.org/abs/2601.10234
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ce87ff094460a6126c854b295ee4e58300fb565d397884228d6ff99f5cb4663d
2026-01-16T00:00:00-05:00
A flower theorem in $\mathbb{C}^n$
arXiv:2601.10235v1 Announce Type: new Abstract: We prove an analog of the flower theorem for non-degenerate reduced tangent to the identity germs that fix the coordinate hyperspaces in any dimension.
https://arxiv.org/abs/2601.10235
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709ef9b98b295455ca5ba435d1092155d8e12ef69e34639a9216ae753dcdff90
2026-01-16T00:00:00-05:00
Ramsey number of a cycle versus a graph of a given size
arXiv:2601.10238v1 Announce Type: new Abstract: In this paper, we prove that for every $k$ and every graph $H$ with $m$ edges and no isolated vertices, the Ramsey number $R(C_k,H)$ is at most $2m+\lfloor \frac{k-1}{2} \rfloor$, provided $m$ is sufficiently large with respect to $k$. This settles a problem of Erd\H{o}s,...
https://arxiv.org/abs/2601.10238
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66b233ae850fe9af446f37d532231aa9c3a63a66ffe1a21cd857af5885c05bde
2026-01-16T00:00:00-05:00
Model order reduction of piecewise linear mechanical systems using invariant cones
arXiv:2601.10241v1 Announce Type: new Abstract: We present a methodology that extends invariant manifold theory to a class of autonomous piecewise linear systems with nonsmoothness at the equilibrium, providing a framework for model order reduction in mechanical structures with compliant contact laws. The key idea is t...
https://arxiv.org/abs/2601.10241
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7758e0f006d77cad05150d117aa512829293fb549e7ebe61f627e78e13134ae5
2026-01-16T00:00:00-05:00
Critical time of the almost 2-regular random degree constrained process
arXiv:2601.10249v1 Announce Type: new Abstract: We study the phase transition of the random degree constrained process (RDCP), a time-evolving random graph model introduced by Ruci\'nski and Wormald that generalizes the random $d$-process to the non-regular setting: each vertex of the complete graph $K_n$ has its pre-a...
https://arxiv.org/abs/2601.10249
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3473fd57a10f254dcb7fa2f46082a50f9a0c9173c848577302bf39fc88b3405e
2026-01-16T00:00:00-05:00
Controllability score for linear time-invariant systems on an infinite time horizon
arXiv:2601.10260v1 Announce Type: new Abstract: We introduce a scaled controllability Gramian that can be computed reliably even for unstable systems. Using this scaled Gramian, we reformulate the controllability scoring problems into equivalent but numerically stable optimization problems. Their optimal solutions defi...
https://arxiv.org/abs/2601.10260
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46ea618684f9d459e0c3a2f998011586030f1108a659c7a38eea18932012772b
2026-01-16T00:00:00-05:00
Three-dimensional compact Heterotic solitons with parallel torsion
arXiv:2601.10270v1 Announce Type: new Abstract: We obtain a rigidity result for compact three-dimensional Heterotic solitons with parallel non-trivial torsion. We show that they are either hyperbolic three-manifolds or compact quotients of the Heisenberg group equipped with a left-invariant metric. In particular, the l...
https://arxiv.org/abs/2601.10270
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80cd76a1a7925f360c2241915cba46a6223be1ff53247ba1c9e3b68e33aa5c9b
2026-01-16T00:00:00-05:00
On a general identity and a resulting class of umbral operators
arXiv:2601.10275v1 Announce Type: new Abstract: We prove a new universal identity for umbral operators. This motivates the definition of a subclass obeying a simplified identity, which we then fully characterize. The results are illustrated with common examples of the theory of umbral calculus.
https://arxiv.org/abs/2601.10275
Academic Papers
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ff9bca114897880e4de3f0081dfd2a25d1ddb2e731d7486d2e9b8609926c6d00
2026-01-16T00:00:00-05:00
New Upper Bounds on the Ribbonlength of Alternating Links with Bipartite Dual Graphs
arXiv:2601.10278v1 Announce Type: new Abstract: The ribbonlength of a link is a geometric invariant defined as the infimum of the ratio of the length to the width of a folded ribbon realization of the link. In this paper, we prove that if an alternating link admits an alternating diagram with a bipartite dual graph, th...
https://arxiv.org/abs/2601.10278
Academic Papers
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a3dc207bccd5c86bea51b078d12a931e26d06bf2328fb4c273a85992a3136c30
2026-01-16T00:00:00-05:00
Optimisation of the lowest Robin eigenvalue in exterior domains of the hyperbolic plane
arXiv:2601.10280v1 Announce Type: new Abstract: We consider the Robin Laplacian in the exterior of a bounded simply-connected Lipschitz domain in the hyperbolic plane. We show that the essential spectrum of this operator is $[\frac14,\infty)$ and that, under convexity assumption on the domain, there exist discrete eige...
https://arxiv.org/abs/2601.10280
Academic Papers
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f23c000a1662fcb934879fb8840202aa582034e9501917f41c97d74a943278b6
2026-01-16T00:00:00-05:00
On holonomy groups of K-contact sub-pseudo-Riemannian manifolds
arXiv:2601.10286v1 Announce Type: new Abstract: This article investigates the holonomy groups of K-contact sub-pseudo-Riemannian manifolds. The primary result is a proof that the horizontal holonomy group either coincides with the adapted holonomy group or acts as its normal subgroup of codimension one. The theory is a...
https://arxiv.org/abs/2601.10286
Academic Papers
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54605890afd607bc58c1678e7f04d615f3af04ffb911e4d3283fe91f7be2999d
2026-01-16T00:00:00-05:00
High-Contrast Transmission Resonances for the Lam\'e System
arXiv:2601.10290v1 Announce Type: new Abstract: We consider the Lam\'e transmission problem in $\mathbb{R}^3$ with a bounded isotropic elastic inclusion in a high-contrast setting, where the interior-to-exterior Lam\'e moduli and densities scale like $1/\tau$ as $\tau\to0$. We study the scattering resonances of the ass...
https://arxiv.org/abs/2601.10290
Academic Papers
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1307b675e92cc1821058be0b3e43fbc1fbc47d192f6f84c7250c4809b762d7ab
2026-01-16T00:00:00-05:00
Two dimensional covering systems and possible prime producing $a^m-b^n$
arXiv:2601.10296v1 Announce Type: new Abstract: We exhibit a new application of two dimensional covering systems, examples of integer pairs $a,b$ for which $a^m-b^n$ has a prime divisor from some given finite set of primes, for every pair of integers $m,n\geq 0$. This leads us to conjecture what are the only possible o...
https://arxiv.org/abs/2601.10296
Academic Papers
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0a621c0c0cb94ffc35ebdf08d792792fc8886ff614e273bad9cdc42f9c43fca6
2026-01-16T00:00:00-05:00
Global minimizers for a two-sided biharmonic Alt-Caffarelli problem
arXiv:2601.10297v1 Announce Type: new Abstract: We study global minimizers of biharmonic analogues of the Alt-Caffarelli functional. It turns out that half-space solutions are global minimizers for the two-sided Alt-Caffarelli functional, but not in the one-sided case. In addition, we identify a further class of global...
https://arxiv.org/abs/2601.10297
Academic Papers
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fbf0bba617f2be1f7d19bfc20d3636504f534086745c395197eef67e65a80391
2026-01-16T00:00:00-05:00
Kummer-faithful fields with finitely generated absolute Galois group
arXiv:2601.10298v1 Announce Type: new Abstract: This paper studies the structure of the Mordell--Weil groups of semiabelian varieties over algebraic extensions of number fields whose absolute Galois group is finitely generated, with particular emphasis on that generated by a single element. A probabilistic argument usi...
https://arxiv.org/abs/2601.10298
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