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\section{Introduction} The classification of finite dimensional algebras over an algebraically closed field $k$ up to derived equivalence is a crucial problem in representation theory. It has a complete answer for algebras of global dimension 1 (see \cite[Corollary~4.8]{Happel87}): Two finite dimensional $k$-algebras $...
{ "timestamp": "2012-03-13T01:02:56", "yymm": "1009", "arxiv_id": "1009.4065", "language": "en", "url": "https://arxiv.org/abs/1009.4065" }
\section{Introduction}\label{sec1} Throughout this paper, we will work over an algebraically closed field $k$ of characteristic $0$. The problem of classifying all Hopf algebras of dimension $d$, where $d$ factorizes in a simple way, attracts many mathematicians' interest. It is also a question posed by Andruskiewitsc...
{ "timestamp": "2010-11-23T02:01:16", "yymm": "1009", "arxiv_id": "1009.3541", "language": "en", "url": "https://arxiv.org/abs/1009.3541" }
\section{Introduction} A fractional power $x^r$ of a string~$x$ is defined as $x^r=xxx\dots xxy$ where $y$ is a prefix of $x$ and $|x^r|=r|x|$. (We assume that $r>1$ is a fraction with denominator $|x|$.) One may ask whether there exists an infinite sequence of letters that does not contain fractional powers $x^r$ wi...
{ "timestamp": "2010-12-02T02:02:51", "yymm": "1009", "arxiv_id": "1009.4454", "language": "en", "url": "https://arxiv.org/abs/1009.4454" }
\section{Introduction} The Gribov-Zwanziger theory \cite{Gribov:1977wm,Zwanziger:1988jt,Zwanziger:1989mf} arises from the Landau gauge Faddeev-Popov action when the domain of integration in the Euclidean functional integral is restricted to the so called Gribov region $\Omega$\footnote{The Gribov region $\Omega$ is de...
{ "timestamp": "2010-10-22T02:03:03", "yymm": "1009", "arxiv_id": "1009.4135", "language": "en", "url": "https://arxiv.org/abs/1009.4135" }
\section{Introduction} The first major event in the Universe after the big bang and the inflation stage is the creation of light elements \citep{wfh67} including D, He-3 and Li, which are of importance for our everyday life or considered as energy source on the Earth in the future. The combination of neutron and pr...
{ "timestamp": "2011-06-01T02:03:38", "yymm": "1009", "arxiv_id": "1009.3932", "language": "en", "url": "https://arxiv.org/abs/1009.3932" }
\section{Introduction} The \textit{proceedings} are the records of a conference. ACM seeks to give these conference by-products a uniform, high-quality appearance. To do this, ACM has some rigid requirements for the format of the proceedings documents: there is a specified format (balanced double columns), a spe...
{ "timestamp": "2010-09-22T02:02:53", "yymm": "1009", "arxiv_id": "1009.4153", "language": "en", "url": "https://arxiv.org/abs/1009.4153" }
\section{Introduction} Grammars are mostly used to describe languages, like programming languages, in order to parse them. In this paper, we are not interested in the parsing problem of a language. On the contrary, the objective is to use a grammar from which the word parsing problem is known to be hard (as in NP), or...
{ "timestamp": "2010-09-22T02:01:12", "yymm": "1009", "arxiv_id": "1009.4012", "language": "en", "url": "https://arxiv.org/abs/1009.4012" }
\section{Experimental} Single crystals of \Mn\ and \Co\ were grown from the melt. During the single crystal growth process of \Mn\ special care was taken to keep manganese in divalent state. This was achieved by the use of high growth temperatures and the renouncement of melt solvents. Using the top seeded growt...
{ "timestamp": "2010-09-23T02:01:51", "yymm": "1009", "arxiv_id": "1009.4338", "language": "en", "url": "https://arxiv.org/abs/1009.4338" }
\section{Introduction} The concept of an acoustic analogy was introduced by Lighthill \cite{1}. This idea offered him the possibility to derive important results on the generation of aerodynamic noise without relying on expansions or perturbation schemes. This is especially important, as the acoustic energy gener...
{ "timestamp": "2010-09-21T02:02:49", "yymm": "1009", "arxiv_id": "1009.3766", "language": "en", "url": "https://arxiv.org/abs/1009.3766" }
\section{Introduction} Critical points, across which a continuous phase transition happens, are interesting and important for their universality, meaning that they can be simply classified according to very few critical exponents. In particular, a quantum Lifshitz point, where fluctuation is driven by zero point en...
{ "timestamp": "2010-09-22T02:00:31", "yymm": "1009", "arxiv_id": "1009.3952", "language": "en", "url": "https://arxiv.org/abs/1009.3952" }
\section{Introduction} \label{sec:intro} A problem in many applications is that of sound generated by circular sources. These include rotors of various types such as aircraft propellers and fans, wind turbines and cooling fans; vibrating systems such as loudspeakers; ducts such as aircraft engines, ventilation systems...
{ "timestamp": "2010-09-21T02:02:41", "yymm": "1009", "arxiv_id": "1009.3748", "language": "en", "url": "https://arxiv.org/abs/1009.3748" }
\section{Introduction} During the past decade the gravitational average action \cite{mr} has been used both as a framework within which the asymptotic safety scenario for a consistent microscopic quantum theory of gravity can be tested \cite{mr}-\cite{livrev} and as a convenient tool for finding the leading quant...
{ "timestamp": "2010-09-21T02:00:33", "yymm": "1009", "arxiv_id": "1009.3528", "language": "en", "url": "https://arxiv.org/abs/1009.3528" }
\section{Introduction} \label{sec:intro} The ultradiscrete QRT (uQRT) maps form an eight-parameter family of integrable two-dimensional piecewise linear maps, which includes reductions of the ultradiscrete KP equation \cite{QCS01,Nobe06,KIMS07} and the ultradiscretization of non-autonomous limit of the discrete Painlev...
{ "timestamp": "2010-09-22T02:01:02", "yymm": "1009", "arxiv_id": "1009.3997", "language": "en", "url": "https://arxiv.org/abs/1009.3997" }
\section*{Temperature and power dependence} Figures \ref{fig:power}a and b show the temperature dependence of the resonance frequency and quality factor. These values are measured at large bias currents where the backaction is negligible. The frequency change due to temperature is small compared to the observed ba...
{ "timestamp": "2010-09-22T02:02:26", "yymm": "1009", "arxiv_id": "1009.4115", "language": "en", "url": "https://arxiv.org/abs/1009.4115" }
\section{Introduction} \label{intro} The problem of high temperature superconductivity \cite{Ginzburg} has been opened for experimental study by the discovery of high-$T_c$ cuprates back in 1986 but among a number of models suggested in the subsequent years none has been generally accepted so far. In this situation it...
{ "timestamp": "2010-09-23T02:01:50", "yymm": "1009", "arxiv_id": "1009.4336", "language": "en", "url": "https://arxiv.org/abs/1009.4336" }
\part{Candidates} \author[G. Gelmini, P. Gondolo]{Graciela Gelmini$^a$, Paolo Gondolo$^b$ \\ $^a$Department of Physics and Astronomy, UCLA, 475 Portola Plaza, Los Angeles, CA 90095, USA \\ $^b$ Department of Physics, University of Utah, 115 S 1400 E \# 201, Salt Lake City, UT 84112, USA} \chapter{DM production me...
{ "timestamp": "2010-09-21T02:02:08", "yymm": "1009", "arxiv_id": "1009.3690", "language": "en", "url": "https://arxiv.org/abs/1009.3690" }
\section{Introduction} \section{Introduction} The following setting is considered in this introductory section. Let $ ( H, \left\| \cdot \right\|_H, \left< \cdot, \cdot \right>_H ) $, $ ( U, \left\| \cdot \right\|_U, \left< \cdot, \cdot \right>_U ) $ and $ ( V, \left\| \cd...
{ "timestamp": "2012-07-26T02:07:16", "yymm": "1009", "arxiv_id": "1009.3526", "language": "en", "url": "https://arxiv.org/abs/1009.3526" }
\section{Introduction} An understanding of cold quark matter is both one of the most challenging problem in particle physics and a prerequisite to understand the true nature of pulsars and pulsar-like objects. However, due to both non-perturbative nature of strong interaction at low energy and complexity presented by t...
{ "timestamp": "2010-09-23T02:00:49", "yymm": "1009", "arxiv_id": "1009.4247", "language": "en", "url": "https://arxiv.org/abs/1009.4247" }
\section{Introduction} In a seminal paper \cite{Pawel} Pawe{\l} Horodecki provided an example of a density operator living in $\Cd \ot \Cd$ which represents entangled state positive under partial transposition (PPT) \begin{equation}\label{RHO} \rho_a\, =\, N_a\left(\begin{array}{ccc|ccc|ccc} a&\cdot&\...
{ "timestamp": "2010-09-23T02:02:20", "yymm": "1009", "arxiv_id": "1009.4385", "language": "en", "url": "https://arxiv.org/abs/1009.4385" }
\section*{Acknowledgments} \section{Introduction and Motivation} \input{intro} \section{Volatility Contributions under Serial Correlation} \input{volaContrib} \section{Scaling in ARMA and VARMA Models} \input{tsModels} \section*{Appendix: Proofs} \begin{proof}[Proof of Proposition~\ref{prop:scaling.univar...
{ "timestamp": "2011-11-30T02:03:41", "yymm": "1009", "arxiv_id": "1009.3638", "language": "en", "url": "https://arxiv.org/abs/1009.3638" }
\section{INTRODUCTION} The publication of comparatively large catalogs of gamma-ray bursts based on the results of the surveys performed within the framework of space missions of the Italo-Dutch BeppoSAX satellite\footnote{\tt http://www.asdc.asi.it/bepposax/} (Satellite per Astronomia X, and Beppo in the honor of Giu...
{ "timestamp": "2010-09-21T02:02:22", "yymm": "1009", "arxiv_id": "1009.3720", "language": "en", "url": "https://arxiv.org/abs/1009.3720" }
\section{Introduction} The extreme ISM conditions in the central $\sim$ 200 pc of the Galaxy render the region more akin to a star-bursting system \citep[e.g.,][]{Launhardt2002} than to almost any region in the Galactic disk. The similarities include: i) a high areal star-formation and (consequent) supernova rates...
{ "timestamp": "2010-11-16T02:03:07", "yymm": "1009", "arxiv_id": "1009.4340", "language": "en", "url": "https://arxiv.org/abs/1009.4340" }
\section{Introduction} The Reissner-Nordst\"om solution is the unique, asymptotically flat, static and spherically symmetric solution of the source-free Einstein-Maxwell theory in $3+1$ dimensions, and gives the second simplest class of black holes. The existence of the electric field makes the geometry qualitatively d...
{ "timestamp": "2011-04-26T02:00:33", "yymm": "1009", "arxiv_id": "1009.4028", "language": "en", "url": "https://arxiv.org/abs/1009.4028" }
\section{Introduction} Let $\Omega$ be a bounded multiply connected domain in ${\Bbb R}^n,\, n=2,3$, with Lipschitz boundary $\partial\Omega$ consisting of $N$ disjoint components $\Gamma_j$, i.e. $\partial\Omega=\Gamma_1\cup\ldots\cup\Gamma_N$ and $\Gamma_i\cap\Gamma_j=\emptyset,\, i\neq j$. In $\Omega$ consider the s...
{ "timestamp": "2011-10-31T01:02:01", "yymm": "1009", "arxiv_id": "1009.4024", "language": "en", "url": "https://arxiv.org/abs/1009.4024" }
\section{Introduction} \label{sec:intro} Recently, a highly significant ($\sim 4\sigma$) indication that there is a spatial gradient in values of the fine-structure constant, $\alpha$, was reported~\cite{webb10arxiv}. That is, in one direction on the sky $\alpha$ was larger in the past, while in the opposite direction...
{ "timestamp": "2010-09-21T02:02:09", "yymm": "1009", "arxiv_id": "1009.3693", "language": "en", "url": "https://arxiv.org/abs/1009.3693" }
\section{Introduction} \label{sec:intro} For $A \in GL_n(\numbersys{R})$ and $y \in \numbersys{R}^n$, we define the dilation operator on $L^2(\numbersys{R}^n)$ by $\dila[A] f(x)=\abs{\ensuremath{\determinant}{A}}^{1/2}f(Ax)$ and the translation operator by $\tran[y]f(x)=f(x-y)$. Given a $n\times n$ real, expansive mat...
{ "timestamp": "2010-09-23T02:02:01", "yymm": "1009", "arxiv_id": "1009.4351", "language": "en", "url": "https://arxiv.org/abs/1009.4351" }
\section{Introduction} In this paper we study nonnegative, measure-valued solutions of the Cauchy problem for a one-dimensional drift-diffusion equation \begin{equation}\label{eq:rho} \de_t{\rho}-\de_x\big(\de_x(\beta({\rho}))+V'{\rho}\big)=0 \quad {\rm in }\ (0,+\infty)\times \mathbb{R}, \qquad {\rho}(0,\...
{ "timestamp": "2010-09-23T02:01:25", "yymm": "1009", "arxiv_id": "1009.4305", "language": "en", "url": "https://arxiv.org/abs/1009.4305" }
\section{Introduction} Given a family $\mathcal{F}$ of sets, a graph $G=(V,E)$ is called an \emph{intersection graph} of sets from $\mathcal{F}$, if there exists a map $f~:~V(G) \rightarrow \mathcal{F}$ such that $(u,v) \in E(G) \Leftrightarrow f(u) \cap f(v) \neq \emptyset$. If the sets in $\mathcal{F}$ are interv...
{ "timestamp": "2010-09-24T02:00:20", "yymm": "1009", "arxiv_id": "1009.4471", "language": "en", "url": "https://arxiv.org/abs/1009.4471" }
\section{Introduction} In solid state physics, one first studies crystallized matter with a perfectly regular atomic structure where the atoms are located on a periodic lattice. However, most crystals are not perfectly periodic; in fact, the regular pattern of atoms may be disturbed by various defects which ...
{ "timestamp": "2011-05-04T02:01:31", "yymm": "1009", "arxiv_id": "1009.3581", "language": "en", "url": "https://arxiv.org/abs/1009.3581" }
\section{Introduction}\label{intro} Amongst approaches for scattered data approximation on the sphere, the hybrid interpolation scheme of von Golitschek \& Light \cite{GL} and Sloan \& Sommariva \cite{SS06}, which employs both radial basis functions and spherical polynomials, seems an attractive method, especial...
{ "timestamp": "2010-09-23T02:01:03", "yymm": "1009", "arxiv_id": "1009.4275", "language": "en", "url": "https://arxiv.org/abs/1009.4275" }
\section{Introduction} Alice has a perfectly fair penny---one that lands heads exactly 50\% of the time. Unfortunately, the penny is mixed in with a jar of ordinary, imperfect pennies. The truly fair penny can never be distinguished from the other pennies, since no amount of experimentation can identify it with cert...
{ "timestamp": "2012-01-20T02:00:48", "yymm": "1009", "arxiv_id": "1009.4188", "language": "en", "url": "https://arxiv.org/abs/1009.4188" }
\section{Introduction} One of the most striking aspects of the physics of Bose-Einstein condensed systems is their response to rotation. The rotation plays the role of a uniform magnetic field, which frustrates the uniform condensate, forcing it into a state containing quantized vortices and carrying non-vanishing cur...
{ "timestamp": "2010-09-23T02:02:35", "yymm": "1009", "arxiv_id": "1009.4420", "language": "en", "url": "https://arxiv.org/abs/1009.4420" }
\section{Introduction} Mystery is the origin of tiny neutrino masses that are indicated from the neutrino oscillation data. How can we understand the smallness of neutrino masses as compared to the electroweak scale? A simple way of the explanation may be based on the seesaw mechanism~\cite{Minkowski:1977sc,Yanagid...
{ "timestamp": "2010-09-21T02:03:37", "yymm": "1009", "arxiv_id": "1009.3845", "language": "en", "url": "https://arxiv.org/abs/1009.3845" }
\section{Introduction} The complete automation of the 1-loop calculations is nowadays a feasible task~\cite{nlopapers}. The advent of the OPP reduction method~\cite{opp}, together with the concept of multiple cuts~\cite{britto}, allowed to revitalize Unitarity~\cite{unitarity} based Techniques, such as Generalized U...
{ "timestamp": "2010-09-23T02:01:24", "yymm": "1009", "arxiv_id": "1009.4302", "language": "en", "url": "https://arxiv.org/abs/1009.4302" }
\section{Introduction} The positivity of the Hilbert space scalar product gives place to an infinite series of inequalities involving the correlation functions of any number of variables in a quantum field theory (QFT). In the real-time formulation we have, for any finite sequence of test functions $f_0\in \mathbb{C}$...
{ "timestamp": "2010-09-21T02:03:30", "yymm": "1009", "arxiv_id": "1009.3832", "language": "en", "url": "https://arxiv.org/abs/1009.3832" }
\section{} The nucleonic ground state as given in Eq.(1) is \begin{equation} |56,0^+\rangle\equiv|N_S\rangle \end{equation} where \begin{equation} |N_S\rangle=\frac{1}{\sqrt{2}}\left(\chi^\rho\phi^\rho+\chi^\lambda\phi^\lambda\right)\psi^0_{00S} \end{equation} where for example \begin{equation} \phi^\lambda_p=-\frac{1}...
{ "timestamp": "2012-01-24T02:02:10", "yymm": "1009", "arxiv_id": "1009.4276", "language": "en", "url": "https://arxiv.org/abs/1009.4276" }
\section{Introduction} \label{section_introduction} \setcounter{equation}{0} Stanley introduced the notion of exponential structures, that is, a family of posets that have the partition lattice $\Pi_n$ as the archetype~\cite{Stanley_e_s, Stanley_EC_II}. His original motivation was to explain certain permutation phe...
{ "timestamp": "2010-09-23T02:00:17", "yymm": "1009", "arxiv_id": "1009.4202", "language": "en", "url": "https://arxiv.org/abs/1009.4202" }
\section{Introduction} The notion of subgroup distortion was first formulated by Gromov in \cite{gromov}. For a group $G$ with finite generating set $T$ and a subgroup $H$ of $G$ finitely generated by $S$, the distortion function of $H$ in $G$ is $$\Delta_{H}^{G}(l) = \max \{ |w|_S : w \in H, |w|_T \leq l \},$$ where $...
{ "timestamp": "2011-04-11T02:01:55", "yymm": "1009", "arxiv_id": "1009.4364", "language": "en", "url": "https://arxiv.org/abs/1009.4364" }
\section{Conclusion} \label{sec:Conclusion} In this paper, a reduced complexity decoding scheme for BICMB-CP is presented. SD with initial radius calculated by ZF-DFE is used to acquire precoded bit metrics needed for the Viterbi decoder. SD can achieve the same performance as exhaustive search, and more importantly,...
{ "timestamp": "2011-09-16T02:00:31", "yymm": "1009", "arxiv_id": "1009.3514", "language": "en", "url": "https://arxiv.org/abs/1009.3514" }
\section{Introduction} \label{sect-1} The spatial and temporal variability of dimensionless physical constants has become a topic of considerable interest in laboratory and astrophysical studies as a test of the Einstein equivalence principle of local position invariance (LPI), which states that outcomes of nongravit...
{ "timestamp": "2010-11-03T01:00:41", "yymm": "1009", "arxiv_id": "1009.3672", "language": "en", "url": "https://arxiv.org/abs/1009.3672" }
\section{Introduction} Let $Q=\mathbb P^1\times \mathbb P^1$ and let $X\subset Q$ be a $0$-dimensional scheme. Let $R$ and $C$ be, respectively, a $(1,0)$ and a $(0,1)$-line not containing any point of $X$ and let $Z$ be a $0$-dimensional scheme given by $X$ and some points on $R$ or $C$. In this paper we deal with t...
{ "timestamp": "2010-09-22T02:02:13", "yymm": "1009", "arxiv_id": "1009.4095", "language": "en", "url": "https://arxiv.org/abs/1009.4095" }
\section{Introduction} \label{sec:intro} There is a significant body of experimental and theoretical work on muon captures in light nuclei, motivated by the fact that the theoretical framework used to study these reactions is the same as that used for weak capture reactions of astrophysical interest, not accessible ex...
{ "timestamp": "2010-09-22T02:01:21", "yymm": "1009", "arxiv_id": "1009.4016", "language": "en", "url": "https://arxiv.org/abs/1009.4016" }
\section{Introduction} In many applications, one considers a process that is modeled as a stochastic differential equation (SDE), while one is ultimately interested in the time evolution of the expectation of a certain function of the state, i.\,e., in weak approximation. Consider, for instance, the micro/macro simul...
{ "timestamp": "2011-11-08T02:01:06", "yymm": "1009", "arxiv_id": "1009.3767", "language": "en", "url": "https://arxiv.org/abs/1009.3767" }
\section{Introduction} Hadronic correlation functions which involve quark disconnected contributions are notoriously hard to compute in lattice QCD~\cite{Neff:2001zr,Foley:2005ac}. Such contributions however appear in several quantities related to properties of flavour singlet particles (e.g. the $\eta$ and $\eta'$...
{ "timestamp": "2010-11-19T02:02:03", "yymm": "1009", "arxiv_id": "1009.3783", "language": "en", "url": "https://arxiv.org/abs/1009.3783" }
\subsection[#1]{\sc #1}} \renewcommand{\mod}{{\ \operatorname{mod}\ }} \newcommand\E{\mathbb{E}} \newcommand\Z{\mathbb{Z}} \newcommand\R{\mathbb{R}} \newcommand\T{\mathbb{T}} \newcommand\C{\mathbb{C}} \newcommand\N{\mathbb{N}} \newcommand\g{\mathbf{g}} \newcommand\X{\mathrm{X}} \newcommand\W{\mathrm{W}} \newcomma...
{ "timestamp": "2011-03-29T02:01:31", "yymm": "1009", "arxiv_id": "1009.3998", "language": "en", "url": "https://arxiv.org/abs/1009.3998" }
\section{Introduction} Several papers have recently appeared concerning the topology of random simplicial complexes \cite{clique, bhk, neighborhood, Linial, Meshulam, triangulated, geometric}. The results so far identify thresholds for vanishing of homology, or compute the expectation of the Betti numbers $\mathbb{E}...
{ "timestamp": "2011-01-19T02:00:31", "yymm": "1009", "arxiv_id": "1009.4130", "language": "en", "url": "https://arxiv.org/abs/1009.4130" }
\section*{Introduction} A toric arrangement is a finite set of hypersurfaces in a complex torus $T=(\C^*)^n$, in which every hypersurface is the kernel of a character $\chi \in X \subset Hom(T,\C^*) $ of $T$. Let $\mathcal{R}_X$ be the complement of the arrangement: its geometry and topology have been studied by many a...
{ "timestamp": "2010-10-29T02:00:22", "yymm": "1009", "arxiv_id": "1009.3622", "language": "en", "url": "https://arxiv.org/abs/1009.3622" }
\section{Introduction} Frames are nowadays a standard methodology in applied mathematics, computer science, and engineering when redundant, yet stable expansions are required. Examples include sampling theory \cite{E03}, data quantization \cite{BP07,BLPY10}, quantum measurements \cite{EF02}, coding \cite{BDV00,SH03}, i...
{ "timestamp": "2011-06-30T02:00:24", "yymm": "1009", "arxiv_id": "1009.3663", "language": "en", "url": "https://arxiv.org/abs/1009.3663" }
\section{Introduction} Asymptotic giant branch (AGB) stars suffer mass loss episodes during the late stages of their evolution. The combination of high densities with relatively low temperatures makes the atmospheres of these stars favourable sites for grain formation, and in fact they are considered one of the ...
{ "timestamp": "2010-09-22T02:00:27", "yymm": "1009", "arxiv_id": "1009.3945", "language": "en", "url": "https://arxiv.org/abs/1009.3945" }
\section{Introduction} {\it Bessel processes} play a prominent role both in the theory of Brownian motion (see \cite{McKean:1960} and \cite{ItoMcKean:1974}) as well as in various theoretical and practical applications. The n-dimensional Bessel process appears quite naturally as the n-dimensional Euclidean norm of B...
{ "timestamp": "2011-06-08T02:00:35", "yymm": "1009", "arxiv_id": "1009.3513", "language": "en", "url": "https://arxiv.org/abs/1009.3513" }
\section{Historique \label{sec:hist}} It is a tradition of the \textit{Rencontres de Blois} to blend scientific discussions at the highest level with culture in an atmosphere that makes us aware of our heritage, broadly conceived. This splendid chateau and the art and history revealed during the excursion to Chenonceau...
{ "timestamp": "2010-09-21T02:02:37", "yymm": "1009", "arxiv_id": "1009.3742", "language": "en", "url": "https://arxiv.org/abs/1009.3742" }
\section{Introduction} \label{sec:intro} To interpret the large-scale alignments of quasar optical polarization vectors observed at redshifts $z\sim$~1 (Hutsem\'ekers \cite{HUT98}; Hutsem\'ekers and Lamy \cite{HUT01}; Hutsem\'ekers et al. \cite{HUT05}) polarization induced by photon-pseudoscalar mixing along the line ...
{ "timestamp": "2010-09-22T02:01:40", "yymm": "1009", "arxiv_id": "1009.4049", "language": "en", "url": "https://arxiv.org/abs/1009.4049" }
\section{Introduction} \label{sec1} Ultracold molecules offer new opportunities for scientific exploration, including studies of molecular Bose-Einstein condensates, novel quantum phases, and ultracold chemistry. For molecular interactions that take place at microKelvin temperatures, even the smallest activation e...
{ "timestamp": "2011-02-22T02:04:17", "yymm": "1009", "arxiv_id": "1009.4312", "language": "en", "url": "https://arxiv.org/abs/1009.4312" }
\section{The CUT method\label{struct:CUT}} \subsection{Homogeneous flow equation} Probably, unitary transformations are one of the most widely used techniques in studies on Hamiltonians. They render a description of a Hamiltonian possible in a more appropriate basis in which the physical properties can be studied...
{ "timestamp": "2010-09-21T02:02:39", "yymm": "1009", "arxiv_id": "1009.3744", "language": "en", "url": "https://arxiv.org/abs/1009.3744" }
\section{introduction} A well known phenomenon in the theory of mixing times\footnote{We do not need the notion of mixing time in this paper, it is only used for comparison. The reader unfamiliar with it may peruse the survey \cite{MT06} or the book \cite{LPW09}.} is that occasionally certain aspects of a sy...
{ "timestamp": "2012-05-28T02:02:54", "yymm": "1009", "arxiv_id": "1009.3723", "language": "en", "url": "https://arxiv.org/abs/1009.3723" }
\section*{Preliminary notation} This paper uses the following notation throughout. Given two real-valued functions $f,g$ with domain $D$, we write \begin{itemize} \item $f\ll g$, $f=O(g)$ or $g = \Omega(f)$ if there is a constant $\gamma$ such that $f(x) \leq \gamma g(x)$ for all $x \in D$. The implicit constant ...
{ "timestamp": "2011-01-20T02:01:14", "yymm": "1009", "arxiv_id": "1009.3899", "language": "en", "url": "https://arxiv.org/abs/1009.3899" }
\section{}
{ "timestamp": "2010-09-21T02:03:32", "yymm": "1009", "arxiv_id": "1009.3836", "language": "en", "url": "https://arxiv.org/abs/1009.3836" }
\section{Introduction} The presence of an important extra line-broadening mechanism (in addition to the rotational broadening and usually called macroturbulence) affecting the spectra of O and B Sgs is well established observationally (see Sim\'on-D\'iaz et al. 2010, and references therein). \cite[Lucy (1976)]{Luc76...
{ "timestamp": "2010-09-21T02:02:44", "yymm": "1009", "arxiv_id": "1009.3752", "language": "en", "url": "https://arxiv.org/abs/1009.3752" }
\section{Introduction} Given $Q=\mathbb P^1\times \mathbb P^1$, Giuffrida, Maggioni and Ragusa in \cite{GMR} have investigated zero-dimensional schemes in $Q$, studying in particular their Hilbert functions, which turn out to be matrices of integers with infinite entries and with particular numerical properties. These...
{ "timestamp": "2011-09-07T02:01:21", "yymm": "1009", "arxiv_id": "1009.4059", "language": "en", "url": "https://arxiv.org/abs/1009.4059" }
\section{Introduction} \label{sec:introduction} \input{introduction} \section{Scenario} \label{sec:scenario} \input{scenario} \section{Approach} \label{sec:approach} \input{approach} \section{Case Study} \label{sec:casestudy} \input{casestudy} \section{Discussion} \label{sec:discussion} \...
{ "timestamp": "2010-09-21T02:02:19", "yymm": "1009", "arxiv_id": "1009.3714", "language": "en", "url": "https://arxiv.org/abs/1009.3714" }
\section*{Introduction} \label{sec:introduction} Modern lattice QCD simulations are mostly based on direct evaluation of the path integral of the theory. Such approach, while being very general and efficient for many applications, suffers from a number of problems, most notable of which are the sign problem at fin...
{ "timestamp": "2011-02-25T02:01:46", "yymm": "1009", "arxiv_id": "1009.4033", "language": "en", "url": "https://arxiv.org/abs/1009.4033" }
\section{Background} Transition metal oxides have drawn the attention of the scientific community for the last 50 years. Particularly, cobalt oxides are becoming increasingly important because of their interesting properties such as superconductivity,\cite{superconductivity} colossal magnetoresistance \cite{colossal} ...
{ "timestamp": "2011-06-03T02:02:32", "yymm": "1009", "arxiv_id": "1009.3736", "language": "en", "url": "https://arxiv.org/abs/1009.3736" }
\section{Introduction}\label{sec:introduction} Graphical Gaussian models have attracted a lot of recent interest. In these models an observed random vector $Y=(Y_1,\dots,Y_p)$ is assumed to follow a multivariate normal distribution $\mathcal{N}_p(\mu,\Sigma)$, where~$\mu$ is the mean vector and $\Sigma$ the pos...
{ "timestamp": "2011-08-10T02:01:28", "yymm": "1009", "arxiv_id": "1009.3669", "language": "en", "url": "https://arxiv.org/abs/1009.3669" }
\section{\label{sec:intro}Introduction} Development of CMOS compatible processes of formation of germanium quantum dot (QD) dense arrays on the (001) silicon surface as well as multilayer Ge/Si epitaxial heterostructures on their basis is a challenging task of great practical significance \cite{Report_01-303,Pche...
{ "timestamp": "2011-01-17T02:01:38", "yymm": "1009", "arxiv_id": "1009.3831", "language": "en", "url": "https://arxiv.org/abs/1009.3831" }
\section{Introduction} The transformation of spiral galaxies to lenticulars in the cluster environment over the last $\sim$5 Gyr is now well established \citep{but78, but84, dre97}, but the processes responsible for bringing about this change are still the subject of vigorous discussion. One set of mechanisms centr...
{ "timestamp": "2010-09-22T02:02:19", "yymm": "1009", "arxiv_id": "1009.4104", "language": "en", "url": "https://arxiv.org/abs/1009.4104" }
\section{Introduction} The main goal of this note is to introduce a new and more general fractional sum operator that unify and extend the discrete fractional operators used in fractional calculus. Looking to the literature of discrete fractional difference operators, two approaches are found (see, \textrm{e.g.}...
{ "timestamp": "2010-09-21T02:03:57", "yymm": "1009", "arxiv_id": "1009.3883", "language": "en", "url": "https://arxiv.org/abs/1009.3883" }
\section{\label{Intro} Introduction} The evaluation of tensorial Feynman integrals with $n$ external legs is an important technical ingredient of perturbative quantum field theoretical calculations with Feynman diagrams. They are needed in particular for the fast and efficient numerical evaluation of next-to-leading or...
{ "timestamp": "2011-02-17T02:02:20", "yymm": "1009", "arxiv_id": "1009.4436", "language": "en", "url": "https://arxiv.org/abs/1009.4436" }
\section{Introduction} During the last thirty years high performance computing (HPC) has become an increasingly-important tool in scientific research. HPC studies enhance understanding of experimental findings, allow researchers to test theories on model systems, and even make it possible to investigate phenomena whic...
{ "timestamp": "2011-03-08T02:01:52", "yymm": "1009", "arxiv_id": "1009.4330", "language": "en", "url": "https://arxiv.org/abs/1009.4330" }
\section{Introduction} \label{Introduction} In recent years, companies in various industries have been able to significantly improve their inventory management processes through the integration of information technology into their forecasting and replenishment systems, and by sharing demand-related information with t...
{ "timestamp": "2010-10-20T02:03:49", "yymm": "1009", "arxiv_id": "1009.3977", "language": "en", "url": "https://arxiv.org/abs/1009.3977" }
\section{Case Studies} \label{sec:case_studies} This section briefly presents two case studies where we use the new model checking commands. The analysis has been performed on a 2.4GHz Intel\textsuperscript{\textregistered} Core 2 Duo processor with 2 GB of RAM. \subsection{A Network of Medical Devices} We apply ...
{ "timestamp": "2010-09-23T02:00:59", "yymm": "1009", "arxiv_id": "1009.4264", "language": "en", "url": "https://arxiv.org/abs/1009.4264" }
\section{Introduction and statements of the main results} In this paper we address the following problem: {\em classify all homogeneous K\"{a}hler\ manifolds (\emph{h.K.m.} for short) which admit a K\"{a}hler\ immersion into a given finite or infinite dimensional complex space form}. \vskip 0.3cm A K\"{a}hler\...
{ "timestamp": "2010-09-22T02:01:39", "yymm": "1009", "arxiv_id": "1009.4045", "language": "en", "url": "https://arxiv.org/abs/1009.4045" }
\section{Introduction} \label{sec:introduction} The theory of inflation represents a cornerstone of the standard model of modern cosmology~\cite{Guth:1980zm, Linde:1981mu, Albrecht:1982wi,Linde:1983gd} (for a review, see \emph{e.g.~} Refs.~\cite{Linde:2007fr, Mukhanov:1990me, Martin:2003bt, Martin:2004um, Martin:2...
{ "timestamp": "2011-03-21T01:01:35", "yymm": "1009", "arxiv_id": "1009.4157", "language": "en", "url": "https://arxiv.org/abs/1009.4157" }
\section{Introduction} In this decade exciting experimental results have been obtained in heavy baryon spectroscopy. During these years, the ${1\over 2}^+$ and ${1\over 2}^-$ antitriplet states, $\Lambda_c^+,~\Xi_c^+,~\Xi_c^0$ and $\Lambda_c^+ (2593)$,\\ $\Xi_c^+(2790),~\Xi_c^0(2790)$ and the ${1\over 2}^+$ and ${3...
{ "timestamp": "2010-12-07T02:01:35", "yymm": "1009", "arxiv_id": "1009.3658", "language": "en", "url": "https://arxiv.org/abs/1009.3658" }
\section{Introduction} Lepton-flavor violation (LFV), if observed in a future experiment, is an evidence of new physics beyond the standard model, because the lepton-flavor number is conserved in the standard model. Since the processes are theoretically free from the non perturbative hadronic effects they provide ...
{ "timestamp": "2010-09-21T02:03:58", "yymm": "1009", "arxiv_id": "1009.3886", "language": "en", "url": "https://arxiv.org/abs/1009.3886" }
\section*{Author Summary} The understanding of the effective functionality that governs the enzymatic self-organized processes in cellular conditions is a crucial topic in the post-genomic era. A number of measures have been proposed for the functionality and correlations between biochemical time series. However, ...
{ "timestamp": "2011-01-18T02:01:40", "yymm": "1009", "arxiv_id": "1009.3627", "language": "en", "url": "https://arxiv.org/abs/1009.3627" }
\section{Introduction}\label{sec:intro} Primordial non-Gaussianity provides cosmology one of the precious few connections between primordial physics and the present-day universe. Standard inflationary theory, with a single slowly rolling scalar field, predicts that the spatial distribution of structures in the univer...
{ "timestamp": "2011-01-18T02:00:23", "yymm": "1009", "arxiv_id": "1009.4189", "language": "en", "url": "https://arxiv.org/abs/1009.4189" }
\section{Introduction} \subsection{The model} \label{1p1} The Hubbard model, with nearest-neighbor hopping $t$ and on-site repulsion $U $ has been widely used to study the effects of correlations, as a simplified model to describe compounds of transition metals and other systems. However, one expects that i...
{ "timestamp": "2010-11-30T02:04:26", "yymm": "1009", "arxiv_id": "1009.4113", "language": "en", "url": "https://arxiv.org/abs/1009.4113" }
\section{Introduction} \label{sec:intro} Shaped and characterized femtosecond pulses are in widespread demand amongst the quantum control community \cite{Goswami2003,Ohmori2009,Dantus2004}. Through tailoring the phase, amplitude or polarization of the control pulse, the evolution of a quantum state may be manipulated ...
{ "timestamp": "2010-10-29T02:02:18", "yymm": "1009", "arxiv_id": "1009.4293", "language": "en", "url": "https://arxiv.org/abs/1009.4293" }
\section{Introduction} In\ this paper we introduce a new problem, which we call the \textit{Split Variational Inequality Problem} (SVIP). Let $H_{1}$ and $H_{2}$ be two real Hilbert spaces$.$ Given operators $f:H_{1}\rightarrow H_{1}$ and $g:H_{2}\rightarrow H_{2},$ a bounded linear operator $A:H_{1}\rightarrow ...
{ "timestamp": "2011-08-11T02:01:36", "yymm": "1009", "arxiv_id": "1009.3780", "language": "en", "url": "https://arxiv.org/abs/1009.3780" }
\section{Introduction} The present acceleration of the universe expansion has been well established through numerous and complementary cosmological observations \cite{Riess}. One explanation for the cosmic acceleration is the dark energy (DE), an exotic energy with negative pressure. Although the nature and cosmol...
{ "timestamp": "2011-08-23T02:00:57", "yymm": "1009", "arxiv_id": "1009.3833", "language": "en", "url": "https://arxiv.org/abs/1009.3833" }
\section{Introduction} Magnetic fields in the Sun and late-type stars produce active regions in the photosphere by affecting the transfer of energy and momentum in the outermost convective layers. These features consist of dark spots, bright faculae, and an enhanced network of magnetic flux tubes with radii down to ab...
{ "timestamp": "2010-09-22T02:02:15", "yymm": "1009", "arxiv_id": "1009.4099", "language": "en", "url": "https://arxiv.org/abs/1009.4099" }
\section{Introduction} The structure of the $^9$Be nucleus has been considered as a prototype of cluster structure in nuclei. It has been described theoretically by many different cluster models and several experiments have been performed in order to understand its structure and decay mechanisms. Much effort has...
{ "timestamp": "2010-09-22T02:01:32", "yymm": "1009", "arxiv_id": "1009.4029", "language": "en", "url": "https://arxiv.org/abs/1009.4029" }
\section{Introduction} \label{Intro} The stability of polymer thin films is an important research subject in polymer physics and materials science. On the one hand, the aim may be to obtain a stable film, as in coatings and lubrification. On the other hand, soft films are used for microstructuring, where they are dest...
{ "timestamp": "2011-02-23T02:01:57", "yymm": "1009", "arxiv_id": "1009.4066", "language": "en", "url": "https://arxiv.org/abs/1009.4066" }
\section{Introduction} It is the instinct of every mathematician that whenever an infinite object is defined in terms of a finite object one should be able to describe various apparently infinite properties of the infinite object in finitely-many terms. For example, when one considers infinite random walks on a finite...
{ "timestamp": "2010-09-21T02:01:09", "yymm": "1009", "arxiv_id": "1009.3585", "language": "en", "url": "https://arxiv.org/abs/1009.3585" }
\section{Introduction} Scalar fields on a curved background have received considerable attention because of their relationship with Bosonic string theory \cite{21}. One normally focuses on the quantum properties of string theory (such as the absence of the conformal anomaly only if the dimension of the target space ex...
{ "timestamp": "2011-11-08T02:03:18", "yymm": "1009", "arxiv_id": "1009.3578", "language": "en", "url": "https://arxiv.org/abs/1009.3578" }
\section{Introduction} \noindent Let $f\:\CDach\rightarrow \CDach$ be a rational map on the Riemann sphere $\CDach$ of degree $\ge 2$. As usual we call a point $p\in \CDach$ a {\em critical point} of $f$ if near $p$ the map $f$ is not a local homeomorphism. A {\em postcritical point} is any point obtained as an ima...
{ "timestamp": "2010-09-21T02:01:44", "yymm": "1009", "arxiv_id": "1009.3647", "language": "en", "url": "https://arxiv.org/abs/1009.3647" }
\subsection{ \renewcommand{\sfdefault}{pag} \@startsection{subsection}% {2}{0pt}{-\baselineskip}{.2\baselineskip}{\raggedright \sffamily\itshape\small }} \renewcommand\section{ \renewcommand{\sfdefault}{phv} \@startsection{section} % {1}{0pt}{\baselineskip}{.2\baselineskip}{\centering \sffamily ...
{ "timestamp": "2011-01-14T02:02:19", "yymm": "1009", "arxiv_id": "1009.3536", "language": "en", "url": "https://arxiv.org/abs/1009.3536" }
\section{Introduction} The enigmatic Of?p stars are identified by a number of peculiar and outstanding observational properties. The classification was first introduced by Walborn (1972) according to the presence of C~{\sc iii} $\lambda 4650$ emission with a strength comparable to the neighbouring N~{\sc iii} lines. We...
{ "timestamp": "2010-09-21T02:00:59", "yymm": "1009", "arxiv_id": "1009.3564", "language": "en", "url": "https://arxiv.org/abs/1009.3564" }
\section{Introduction} The early evolution of low mass, isolated protostellar cores in the pre-Class 0 stage is now understood as the interplay between gravity, rotation, magnetic fields, and radiative cooling. Strong magnetic fluxes have been observed in molecular clouds \citep[e.g.][]{1999ApJ...520..706C}. Recent s...
{ "timestamp": "2010-09-23T02:02:49", "yymm": "1009", "arxiv_id": "1009.4445", "language": "en", "url": "https://arxiv.org/abs/1009.4445" }
\section{Introduction} Using an xuv attosecond pulse to photoemit electrons from gaseous or solid targets into the electric field of a synchronized delayed femtosecond (fs) infrared (ir) laser pulse provides a powerful tool for investigating ultrafast electron dynamics by recording ir-laser-streaked xuv PE spectra...
{ "timestamp": "2010-09-21T02:03:59", "yymm": "1009", "arxiv_id": "1009.3887", "language": "en", "url": "https://arxiv.org/abs/1009.3887" }
\section{Introduction} Anomalous X-ray pulsars (AXPs) are pulsar-like objects, whose X-ray luminosities are in excess of their rotational energy losses while they show no binary signature, thus acquiring the name ``anomalous'' X-ray pulsars (Mereghetti 2008). AXPs, along with soft gamma-ray repeaters (SGRs), are candi...
{ "timestamp": "2010-11-17T02:01:31", "yymm": "1009", "arxiv_id": "1009.3620", "language": "en", "url": "https://arxiv.org/abs/1009.3620" }
\section{INTRODUCTION} The inequalit \begin{equation} f\left( \frac{a+b}{2}\right) \leq \frac{1}{b-a}\dint\limits_{a}^{b}f(x)d \leq \frac{f(a)+f(b)}{2} \label{1.1} \end{equation where $f:I\subset \mathbb{R} \rightarrow \mathbb{R} $ is a convex function defined on the interval $I$ of \mathbb{R} ,$ the set ...
{ "timestamp": "2011-04-29T02:01:05", "yymm": "1009", "arxiv_id": "1009.4085", "language": "en", "url": "https://arxiv.org/abs/1009.4085" }
\section{Introduction} It has been known for a long time that rotation curves of neutral hydrogen clouds in the outer regions of galaxies cannot be explained in terms of the luminous matter content of the galaxies, at least within the context of Newtonian gravity or of general relativity (see [1] for a review). I...
{ "timestamp": "2010-09-23T02:01:38", "yymm": "1009", "arxiv_id": "1009.3572", "language": "en", "url": "https://arxiv.org/abs/1009.3572" }
\section{Introduction} Secular aberration drift is an apparent alteration in the velocity of distant objects caused by the acceleration of the Solar System barycenter in the Milky Way. The proper motion field of extragalactic sources affected by the secular aberration drift should present a dipolar structure with ampl...
{ "timestamp": "2011-04-13T02:00:58", "yymm": "1009", "arxiv_id": "1009.3698", "language": "en", "url": "https://arxiv.org/abs/1009.3698" }
\section{Introduction} In a variety of recently discovered materials, superconductivity apparently arises directly from the electron correlations themselves. However, these materials are complex, and many material specific details can play a role in the mechanism of superconductivity. The problem is greatly simpli...
{ "timestamp": "2010-09-22T02:00:48", "yymm": "1009", "arxiv_id": "1009.3600", "language": "en", "url": "https://arxiv.org/abs/1009.3600" }
\section{Introduction} \label{Introduction} We consider compactification of $({\cal N}=1,D=11)$ supergravity on a 7-manifold $X^7$ with betti numbers ($b_0, b_1, b_2, b_3, b_3, b_2, b_1, b_0$) and define a generalized mirror symmetry \begin{equation} (b_0, b_1, b_2, b_3) \rightarrow (b_0, b_1, b_2 -\rho/2, b_3+\rh...
{ "timestamp": "2010-09-23T02:02:47", "yymm": "1009", "arxiv_id": "1009.4439", "language": "en", "url": "https://arxiv.org/abs/1009.4439" }
\section{Introduction} \label{intro} If the taste of a cake depends primarily on its ingredients, then the study of dwarf galaxies deserves a very careful attention. These objects are indeed believed to be the smallest baryonic counterparts to the dark matter building blocks in our Universe. It is established that dw...
{ "timestamp": "2010-09-23T02:00:16", "yymm": "1009", "arxiv_id": "1009.4198", "language": "en", "url": "https://arxiv.org/abs/1009.4198" }
\section{Introduction} In one-dimensional quantum systems, a completely different behavior for the integer spin chains from the half-integer spin chains was predicted by Haldane \cite{Haldane1,Haldane2}. The antiferromagnetic isotropic spin-1 model introduced by Affleck, Kennedy, Lieb and Tasaki (AKLT model) \cite{AKL...
{ "timestamp": "2012-01-04T02:08:47", "yymm": "1009", "arxiv_id": "1009.4018", "language": "en", "url": "https://arxiv.org/abs/1009.4018" }
\section{Introduction} The theory of small deviations of random functions is currently in intensive development. In this paper we address small deviations of Gaussian random fields in $L_2$-norm. Suppose we have a real-valued Gaussian random field $X(x)$, $x\in {\cal O}\subset {\mathbb R}^d$, with zero mean and cova...
{ "timestamp": "2010-11-18T02:01:53", "yymm": "1009", "arxiv_id": "1009.4412", "language": "en", "url": "https://arxiv.org/abs/1009.4412" }
\section{Introduction} Classical and quantum information processing network architectures utilize light (optical photons) for the transmission of information over extended distances, ranging from hundreds of meters to hundreds of kilometers~\cite{Agrawal2002,Duan2001}. The utility of optical photons stems from their ...
{ "timestamp": "2010-09-21T02:00:34", "yymm": "1009", "arxiv_id": "1009.3529", "language": "en", "url": "https://arxiv.org/abs/1009.3529" }