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[ { "content": "in this paper we present a partial wave analysis ( pwa ) of a high - statistics sample of events corresponding to the production of the @xmath13 system produced in @xmath14 collisions in two modes : @xmath15 and @xmath16 . \n this sample size exceeds , by at least an order of magnitude , the large...
[ { "content": "the experimental success in creating ultracold @xmath0k@xmath1rb molecular gas near quantum degeneracy @xcite has drawn considerable attention to in studying the fundamental properties of degenerate dipolar fermi gases . within the framework of the semi - classical theory , \n the ground state pr...
[ { "content": "the origin of extra solar cosmic rays ( cr ) is one of the important unresolved astrophysical questions . \n galactic shell type supernova remnants ( snr ) have been proposed as plausible acceleration sites for cosmic rays up to energies of several pev ( @xcite ) and - for very massive sn progenit...
[ { "content": "in the past fifteen years , our understanding of gamma - ray bursts ( grbs ) had been revolutionized . as usual , \n some aspects are understood better than others . \n for example , the detection of a bright supernova component in the afterglow of some nearby long grbs establishes their collapsar...
[ { "content": "at very high energies @xmath3 in the small-@xmath4-region the multi - regge - kinematics ( mrk ) respectively the quasi - mrk ( qmrk ) is an especially suited approximation for the calculation of lepto- and hadroproduction cross sections . \n we consider the central heavy quark - antiquark - hadro...
[ { "content": "in the past decades there has been an enormous effort , both theoretically and experimentally , in trying to understand the origin of electroweak symmetry breaking . within the standard model ( sm ) , \n the higgs mechanism provides a solution that demands the existence of a fundamental self - in...
[ { "content": "we give here explicitly the set of thirteen ordinary differential equations ( odes ) for the amplitudes of the fourier modes @xmath88 that define the truncated euler equation ( tee ) in the case @xmath89 . \n note that @xmath88 are real numbers because of the free - slip boundary conditions ( see ...
[ { "content": "the search for a possible critical point of qcd is one of the driving motivations for the low energy runs at rhic / bnl and the upcoming facilities fair at gsi / darmstadt and nica in dubna . \n the assumed existence of a critical point is based on two observations : at vanishing baryochemical pot...
[ { "content": "let @xmath27 . \n let @xmath2 be an algebraically closed field and @xmath0 a @xmath1-dimensional symplectic vector space over @xmath2 . \n the symplectic group @xmath15 acts naturally on @xmath0 from the left hand side , and hence on the @xmath28-tensor space @xmath18 . \n let @xmath29 be the brau...
[ { "content": "observations at 850 , initially with the submillimeter common user bolometer array ( scuba ) and subsequently with the max planck millimeter bolometer ( mambo ) , have revealed galaxies that are strong sources of dust emission but faint at visible wavelengths ( smail , ivison & blain 1997 , hughes...
[ { "content": "the @xmath0 mass region is a particularly complex one , displaying transitional behavior such as prolate - oblate deformed shapes , @xmath5-unstability , triaxial deformation and/or coexistence of different configurations which present a daunting challenge to nuclear structure models . despite thi...
[ { "content": "the capacity of the interference channel remains one of the most challenging open problems in the domain of network information theory . \n the capacity region is not known in general , except for a specific range of channel parameters . \n for the two - user scalar gaussian interference channel ,...
[ { "content": "recently @xcite , we have studied the collision of two @xmath0-dimensional aichelburg - sexl ( as ) shock waves @xcite , using a method first developed ( in @xmath2 ) by death and payne @xcite , with the goal of obtaining the radiated energy . \n this method is conceptually and technically elabora...
[ { "content": "the topic of relaxation driven by stellar encounters in star systems has a long and distinguished history @xcite and has important implications for the evolution of star clusters @xcite and of active galactic nuclei @xcite . \n however , it is widely believed that relaxation through star - star en...
[ { "content": "symmetry reduces complexity . in physical systems realizing quantum computers , \n the highest degree of symmetry is therefore not the most desirable . \n a quantum computer needs to be sufficiently simple and robust to be controllable in an experiment yet complex enough to be universal . \n one m...
[ { "content": "extremely sensitive interferometric measurements are implied in several frontier experiments . for instance , large baseline gravitational wave detectors presently surpass the limit of @xmath1 hz@xmath2 in relative displacement spectral noise @xcite . \n an improvement of more than one order of...
[ { "content": "determining the volume of metric balls in riemannian manifold , in particular unitary group , is the key to understand several coding and information theoretical quantities . \n performance analysis of unitary space - time codes @xcite requires the knowledge of volume in the unitary group @xcite...
[ { "content": "given a simple , closed curve in three - space is there a surface with minimal area spanning it ? \n solutions to the problem of plateau depend , of course , on the class of spanning surfaces permitted . \n douglas @xcite won the first fields medal for his proof of the existence of an area minimiz...
[ { "content": "the performance of interferometers at ( sub)millimetre wavelengths is often limited by differential fluctuations in the atmospheric path along the line of sight to each of the constituent antennas . \n if uncorrected , these fluctuations lead to a loss in sensitivity , imaging artefacts and a limi...
[ { "content": "ss 433 is a binary system which is thought to consist of a compact object ( probably a black hole ) and optical star filling its roche lobe . \n there is a supercritical accretion rate in the system ( fabrika 2004 ) , which leads to formation of the geometrically thick accretion disk around compac...
[ { "content": "this work is motivated by the formation of lipid rafts in lipid membranes . \n lipid bilayer membranes are of utmost importance for the survival of cells . \n they separate the interior of cells from the extracellular environment and compartmentalize subcellular organelles so suitable micro - envi...
[ { "content": "winds of many early - type stars show cyclic , or even strictly periodic , variability on a rotational timescale . \n this behaviour was extensively studied in the uv with the iue satellite . \n both pulsations and magnetic fields have been suggested as the cause for this variability . \n it is cl...
[ { "content": "electrons are identified at mid - rapidity using the information provided by the time projection chamber ( tpc ) , the transition radiation detector ( trd ) , and the time - of - flight ( tof ) detector . \n the time - of - flight of the individual particles is required to be consistent with the e...
[ { "content": "magnetic flux ropes play an important role in solar eruptions manifested as coronal mass ejections ( cmes ) and/or flares . \n recently , a new line of observational structures , namely euv hot - blobs and/or channels , have been proposed to be the most direct manifestation of flux ropes ( cheng e...
[ { "content": "with the discovery of neutrino masses and mixing in neutrino oscillation experiments , leptogenesis @xcite has become the most attractive model of baryogenesis to explain the observed matter - antimatter asymmetry of the universe . \n this can be expressed for example in terms of the baryon - to -...
[ { "content": "the university of central florida ( ucf ) is a large metropolitan university located in orlando , florida . shortly before this study was started , the u.s . \n department of education national center for education statistics ranked ucf as the sixth largest university in the country based on a fal...
[ { "content": "the detection of spectral signatures associated with the environment of a @xmath0-ray burst ( grb ) would provide important clues about the triggering mechanism and the progenitor ( mszros & rees 1998 ; lazzati , campana & ghisellini 1999 ; bttcher 2000 ) . \n observations with _ \n chandra _ , _ ...
[ { "content": "understanding brain function requires knowing connections between neurons . however , experimental studies of inter - neuronal connectivity are difficult and the connectivity data is scarce . at the same time \n neuroanatomists possess much data on cellular morphology and have powerful techniques ...
[ { "content": "we thank m. gyulassy for helpful discussions . this work was supported in part by the nsfc under the project no . 10825523 and 11221504 , by self - determined research funds of ccnu from the colleges basic research and operation of moe , helmholtz international center for fair within the framework...
[ { "content": "it is noteworthy that except for one or two possible exceptions in the meson sector , the hundreds of known hadrons can be described as bound states of three quarks ( @xmath0 ) , in the case of baryons , or a quark and anti - quark ( @xmath6 ) , in the case of mesons . \n there have been reports o...
[ { "content": "quantum monte carlo ( qmc ) techniques are among the most powerful and versatile methods for the computer simulation of a large variety of interesting quantum systems encountered in physics , chemistry or biology @xcite . in particular , qmc is capable of delivering numerically exact results . des...
[ { "content": "the intermetallic compound zr@xmath0al has been of special interest as a nuclear structural material although a drawback of the material is embrittlement under certain irradiation conditions @xcite . \n recently , it was shown that nanostructuring of materials can enhance the irradiation resistanc...
[ { "content": "evolutionary dynamics arise from the interplay of mutations acting on genotypes and natural selection acting on phenotypes . understanding the structure of the genotype - phenotype ( gp ) map is therefore critical for understanding evolutionary processes . \n we address a simple question about str...
[ { "content": "in the standard model , the @xmath0 matrix @xcite describes the couplings , through charged weak currents , of up - type quarks with down - type quarks . \n the @xmath4 unitary matrix is determined by four parameters : three of those can be interpreted as mixing angles between the three pairs of g...
[ { "content": "gallager in @xcite showed that for @xmath5 and @xmath6 , there exist @xmath7 regular low - density parity - check ( ldpc ) codes for which the bit error probability tends to zero asymptotically whenever we operate below the threshold . \n richardson and urbanke in @xcite derived the capacity of ld...
[ { "content": "let @xmath0 be a field , @xmath1 be a finite group and let @xmath2 be a fully @xmath1-graded @xmath0-algebra . by definition , @xmath2 has a decomposition @xmath3 where each @xmath4 is a a @xmath0-vector space , for any @xmath5 , such that for all @xmath6 we have @xmath7 in this paper we work only...
[ { "content": "it is known that dynamic vortex shedding can lead to losses in lift , sharp increases in drag , and destructive pitching moments and buffeting , which all limit an aircraft flight envelope . \n therefore , in order to improve aerodynamic characteristics , flow separation control would be highly de...
[ { "content": "quantum chromodynamics ( qcd ) is widely believed to be the theory of strong interactions . in this non abelian theory , the gauge bosons , the gluons , carry a color charge . \n we are therefore led to observable color singlet configurations made of quarks but also gluons . \n glueballs , bound s...
[ { "content": "relativistic nucleus - nucleus ( a+a ) collisions provide us with experimental information about the phase diagram of quantum chromodynamics ( qcd ) and the strongly interacting matter properties . the last stage of such collisions is traditionally analyzed within the statistical approach which gi...
[ { "content": "the existence of high - mass , x - ray luminous clusters of galaxies at @xmath12 provides a strong constraint on cosmological models ( eke 1996 ) . \n the presence of any @xmath13 clusters at @xmath14 invalidates most @xmath15 cdm models ( bahcall _ et al . \n _ 1997 , henry 1997 ) . \n further , ...
[ { "content": "majority of stars reside in binary systems @xcite . \n the mechanism of planet formation around binary systems would be different from that around single stars not only because the environment of the protoplanetary disk would be affected by the binary companion but also because the binary companio...
[ { "content": "while a static magnetic field can not change the kinetic energy of charged particles , it affects the direction of their motion due to a lorentz force . \n this property is widely used in physics and technology . \n for example , magnetic fields play a crucial role in cyclotrons and particle accel...
[ { "content": "substantial populations of intergalactic qso absorption - line systems have been detected in highly - ionized oxygen ( ) with the hubble space telescope ( hst ) and the _ far ultraviolet spectroscopic explorer _ ( _ fuse _ ) . because they are probably hot ( @xmath8 k ) \n , these absorbers may r...
[ { "content": "the ability to control the rotational motion and to angularly confine molecules has various applications in molecular sciences . \n this includes studies of steric effects in chemical reactions , both bimolecular and photoinduced , and the possibility to investigate molecules from their own point ...
[ { "content": "we focus on rare - event simulation for addressing reliability problems corresponding to dynamic systems . to compute the rare event ( failure ) probability for a dynamic system , both input ( excitation ) and modeling uncertainties \n should be quantified and propagated . \n therefore , a probabi...
[ { "content": "a group action is one of the most important tool in the study of mathematical objects . \n finite group actions in symplectic geometry appear in various contexts , such as mirror symmetry , singularity theory , etc . in this paper \n , we will construct finite group actions on lagrangian floer the...
[ { "content": "in this paper the status of heavy flavours , charm , bottom and top , is reviewed . \n for the charm quark , emphasis is placed on measurements of the production rates and the differential cross sections at hera and the tevatron and of the extraction of the gluon structure function from the proton...
[ { "content": ", mobile data traffic is explosively and continuously rising due to smart phone and tablet users and it is expected that next - generation ( a.k.a . the 5th generation ) \n cellular networks will offer a 1000x increase in network capacity as well as a 1000x increase in energy - efficiency in the f...
[ { "content": "understanding physical aging in glasses is essential at a technological level , for controlling the material properties and their temporal evolution , as well as at a fundamental level , since glasses are often considered as archetypes for systems far from thermodynamical equilibrium @xcite . \n h...
[ { "content": "the reconstruction of an unknown quantum state known as quantum tomography is a fundamental task in quantum information science , where a myriad of new technologies promise to exploit special features of quantum states in order to enhance communication , metrology , and computation . \n since th...
[ { "content": "the standard model of cosmology accounts for the phase of accelerated expansion that the universe is currently undergoing by introducing a cosmological constant term in the gravitational action . \n according to observations , the value of this cosmological constant should be @xmath0 ev@xmath1 , w...
[ { "content": "it is a classical result of bott and samelson @xcite that the orbits of a variationally complete group action are taut . \n isometric group actions are generalized to foliations via the notion of singular riemannian foliation , see @xcite ; and lytchak and thorbergsson defined in @xcite the analog...
[ { "content": "several studies have contributed to show the importance of black hole rotation in agn jet formation . \n agn jet classification mainly relies on orientation effects and relativistic doppler boosting . \n however , they can not explain neither the dichotomy between radio loud and radio quiet agn , ...
[ { "content": "we will discover a large class of positive finite presentations of the @xmath0-braid group . roughly speaking , a presentation in this class \n has a set of generators determined by a connected graph with @xmath0 vertices immersed in a plane in such a way that each pair of edges intersects at most...
[ { "content": "for over the last forty years , the kondo effect has occupied a central place in condensed matter physics . while earlier studies of the effect have focused on its single - channel version realized in dilute magnetic alloys and valence - fluctuating systems , later attention has largely shifted to...
[ { "content": "one - dimensional ( 1d ) systems @xcite are a model to study the fundamental processes of dynamics and ( de)coherence in interacting many - body quantum systems . \n ultracold atoms in strongly elongated traps with @xmath5 ( @xmath6 , @xmath7 being the frequencies of the radial and longitudinal co...
[ { "content": "the problem of measuring the scientific excellence of research institutes and universities is one of current and continued importance @xcite . \n it is important to be able to detect and support the most promising research groups and to have sound and robust bases to wisely plan and invest for the...
[ { "content": "single electron control in semiconductor quantum dots would be valuable for spintronics , quantum information , and spin qubits@xcite . \n adiabatic time evolution of degenerate eigenstates of a quantum system provides a means for controlling individual quantum states@xcite . \n they exhibit non -...
[ { "content": "high harmonic generation can be used for attosecond imaging of molecules @xcite . \n this is a consequence of the fact that the structure of an aligned molecule can be inferred from quantum - interference patterns , which appear in the high - harmonic spectra \n . understood in terms of the three ...
[ { "content": "many species of animal live in group and are capable of making decisions while maintaining group coherence @xcite . \n animal living in groups are constrained by what they can perceive thus most of the time they can not have a global view of the group and their environment . \n yet those species a...
[ { "content": "extragalactic jets are a common feature of radio - loud active galaxies @xcite . \n these galaxies presumably host a supermassive black hole in their nuclei ( @xmath0 ) , and the accretion disks of matter that form around them originate the observed strong optical / uv emission . around one per ce...
[ { "content": "the perceptron which was first analyzed with statistical mechanics techniques in the seminal paper of gardner @xcite is by now a well - known and standard model in theoretical studies and practical applications in connection with learning and generalization @xcite . \n a number of extensions of th...
[ { "content": "there is plenty evidence for magnetic fields on the scale of the earth , the solar system , the interstellar medium , galaxies and clusters of galaxies [ for the extragalactic magnetic field see review by kronberg ( 1994 , k94 ) and references therein ] . \n we still do nt know however whether any...
[ { "content": "it is well known that several properties of galaxies depend on environment . \n pioneering work by @xcite shows that galaxy morphology depends on local galaxy density : late type galaxies prefer low density environments , while dense environments tend to be populated by early type galaxies . \n th...
[ { "content": "quantum parameter estimation , the emerging field of quantum technology , aims to use entanglement and other quantum resources to yield higher statistical precision of a parameter @xmath4 than purely classical approaches @xcite . \n the precision of estimation of @xmath4 will depend on the availab...
[ { "content": "dark energy is widely described as the biggest problem in cosmology today ; one which may demand new physics and a theoretical paradigm shift@xcite . in this paper \n i suggest that the solution to the problem of dark energy is intimately related to the correct understanding of observational anoma...
[ { "content": "in this paper we consider a time - periodic ode of the form @xmath0 , where @xmath1 for all @xmath2 with a fixed period @xmath3 , and study the basin of attraction of a periodic solution . \n the basin of attraction can be computed using a variety of methods : * invariant manifolds * form the boun...
[ { "content": "there is currently much interest in performing ancestral inference from molecular population genetic data . to facilitate this inference , \n there has been an explosion of research in developing computationally efficient methods . \n these techniques are designed either to compute the likelihood ...
[ { "content": "vortices play a fundamental role in a large variety of physical systems , ranging from ordinary fluids over condensed matter to the early universe . \n this variety is reflected in the mathematical models used to describe the formation , structure and dynamics of vortices . in fluid dynamics , \n ...
[ { "content": "since the beginning of the 21st century , the spectroscopy of spin noise @xcite has emerged as a competitive tool to study spin dynamics in close to thermal equilibrium conditions . \n the rapid development of this technique has started with detailed investigations of the spin fluctuations in ato...
[ { "content": "recently diffractive phenomena in qcd have attracted considerable theoretical and experimental interests . \n in particular , diffractive photo- and leptoproductions of vector mesons off the proton , @xmath4 , provide crucial constraints on properties of the qcd pomeron and the vector meson wave f...
[ { "content": "we assume familiarity with the basic concepts about graphs . + as usual , we denote by @xmath5 and @xmath6 the _ complete graph on @xmath7 vertices _ and the _ \n complete @xmath8-partite graph with parts of size @xmath9 _ , respectively . also , let @xmath10 , @xmath11 , be the cycle on @xmath12 ...
[ { "content": "there are several independent ways to determine the global cosmological parameters that describe the current state of the universe . \n it is important to have several complementary and independent methods that yield consistent results since any given method could be plagued by unknown systematic ...
[ { "content": "low - energy hadron - hadron scattering plays an important role in the understanding of non - perturbative physics of strong interaction . \n due to its genuine non - perturbative nature , such problems can only be studied from first principles using non - perturbative methods like lattice qcd . \...
[ { "content": "recent observations ( adelberger 2003 , shapley 2003 ( s03 ) , steidel 2003 , adelberger 2005 ) based on a combination of quasar absorption - line and faint - galaxy techniques applied to the same cosmic volumes have revealed that uv - selected , star forming galaxies at redshift @xmath4 ( in brie...
[ { "content": "10 url # 1#1urlprefix[2][]#2 lhuillier c , sindzingre p and fouet j b 2001 _ can . \n j. phys . _ * 79 * 15251535 ; arxiv : cond - mat/0009336", "role": "user" }, { "content": "spin-1/2 magnets with kagom geometry , being for years a generic object of theoretical investigations , hav...
[ { "content": "local magnetic moments resulting from partially filled localized orbitals can experience an indirect magnetic exchange coupling mediated via a system of conduction electrons . \n the prime example is the ruderman - kittel - kasuya - yoshida ( rkky ) effective interaction @xcite which has an oscill...
[ { "content": "accretion and clustering are the most fundamental aspects of ob star formation ( see garay & lizano 1999 , mckee & ostriker 2007 and zinnecker & yorke 2007 for reviews ) . \n ob stars are observed to form in very special regions of molecular clouds massive molecular clumps , typically of parsec s...
[ { "content": "the recent discovery of a cloud moving towards the galactic center @xcite creates a potential opportunity for testing models of sgr a*. the @xmath7 cloud will interact strongly with gas near nominal pericenter at @xmath8 ( @xmath9 black hole mass ) , and may change the black hole accretion rate @...
[ { "content": "this work is supported in part by fundao de amparo pesquisa do estado de so paulo ( fapesp ) and the conselho nacional de desenvolvimento cientfico e tecnolgico ( cnpq ) . \n m.s.h is the martin gutzwiller fellow , 2007/2008 .", "role": "user" }, { "content": "we derive closed express...
[ { "content": "over the last three decades the orbital physics of @xmath6 systems and its interplay with spin has focused primarily on transition metal oxides , especially 3@xmath7 transition metals ( tms ) . \n while the magnetic @xmath6 configuration has been studied mostly in @xmath8 systems , it can also occ...
[ { "content": "diffuse interstellar bands ( dibs ) are mysterious absorption structures of interstellar origin observed in spectra of reddened stars of early spectral types . \n the detection of the first two dibs was described by heger in 1922 . \n these structures , as we know them today , are scattered within...
[ { "content": "the evolution of pre - main - sequence ( pms ) stars young contracting stars on their way to the main sequence is poorly understood although significant progress have been made in recent years ( see * ? ? ? \n * ; * ? ? ? \n * for reviews ) . \n observationally , these stars are also among the h...
[ { "content": "in the context of coded communication , the channel coding theorem relates the error probability and the code rate , showing that there exist codes whose error probability tends to zero provided that the code rate is smaller than the channel capacity . for uncoded systems , the error probability a...
[ { "content": "a red blood cell ( rbc ) has been a standard test bed of membrane physics due to its simple structure lacking a nucleus and organelles . \n early studies , treating a rbc as a lipid bilayer bag , already rendered insightful understanding of various properties , to name a few , biconcave shapes@xc...
[ { "content": "much of the theoretical and experimental interest has been recently devoted to the study of the production of heavy quarks in hadronic collisions . on the theoretical side the calculation in perturbative qcd of the differential and total cross sections to order \n @xmath6 has been performed by two...
[ { "content": "various pieces of evidence support the idea that the x - ray emission from active galactic nuclei ( agn ; see * ? ? ? \n * ; * ? ? ? \n * ) and stellar - mass black - holes @xcite originates from an accretion disc and the surrounding corona . \n these are thought to be situated near a central blac...
[ { "content": "monitoring known radial velocity planets at predicted transit times presents an avenue through which to explore the mass - radius relationship of exoplanets into regions of period / periastron space beyond that which is currently encompassed @xcite . \n this is particularly true for those planets ...
[ { "content": "in this paper , we compute the @xmath2-invariant cone of effective divisors of the fulton - macpherson configuration space of @xmath0 points on @xmath1 . \n this space is isomorphic to the moduli space @xmath5 of stable maps of degree one from genus zero curves with @xmath0 marked points to @xmath...
[ { "content": "coevolution is often antagonistic , such that one species benefits from the other s loss . \n classic examples include predators and their prey , and pathogens and their hosts . \n antagonistic coevolution is commonly thought to result in rapid co - evolutionary arms races @xcite . \n when partici...
[ { "content": "the results reported here derive from a numerical analysis of orbits in the triaxial dehnen potentials , where ( _ cf . _ \n merritt & fridman 1996 ) @xmath0 with @xmath1 assuming fixed axis ratios @xmath2 and @xmath3 but allowing for a variable cusp index @xmath4 and a variable black hole mass @x...
[ { "content": "recent and ongoing advances in technology have led to the discovery of extrasolar planets ( e.g. , mayor & queloz 1995 , marcy _ et el . \n _ 1997a , b , butler & marcy 1996 , marcy & butler 1996 , cochran _ et al . \n _ 1997 , noyes _ \n _ 1997 ; see also the references listed in the encyclopedia...
[ { "content": "the x - ray emission from galactic x - ray binaries is known to exhibit aperiodic variability on a vast variety of time scales , from months down to milliseconds ( for reviews see , e.g. @xcite ) . \n the pca on board the _ rossi x - ray timing explorer _ ( rxte ) , has accumulated a large amount ...
[ { "content": "one of the motivations of this paper is the asymptotic analysis of the generalized laguerre polynomials , denoted by @xmath7 , with complex varying parameters , whose definition and properties can be found for instance in chapter v of szeg s classic memoir @xcite . \n they can be given explicitly ...
[ { "content": "the occurrence of hot jupiters \" ( hjs ) gas giants with periods @xmath3 days is estimated to be around @xmath4 for fgk stars @xcite . \n it is commonly believed that these planets formed at larger separations from their host stars ( presumably beyond the ice line ) and subsequently migrated...
[ { "content": "supernova 1987a ( sn 1987a ) in the large magellanic cloud provides an unprecedented opportunity to observe the birth and development of a supernova remnant . _ international ultraviolet explorer _ ( _ iue _ ) observations @xcite found narrow line emission about 80 days after the explosion , demo...
[ { "content": "the planetary nebula ( pn ) ngc6369 possesses a double - shell morphology consisting of a round bright inner shell and a fainter filamentary outer shell or envelope @xcite . \n its most remarkable morphological features are two disparate extensions of the inner shell along the east and west direct...
[ { "content": "@xcite proposed an unorthodox explanation for luminous blue variable stars ( lbvs / s dor variables ) . in their scenario \n all lbvs have gained mass from companion stars , with various consequences . \n far more complex than the standard view , this idea was motivated by a statistical allegation...
[ { "content": "the theory of bounded subnormal operators was initiated by halmos ( cf . \n @xcite ) . the definition and the first characterization of their unbounded counterparts were given independently by bishop ( cf.@xcite ) and foia ( cf . \n the foundations of the theory of unbounded ( i.e. , not necessari...
[ { "content": "in 2005 akiyama _ et al . _ \n @xcite introduced so - called _ shift radix systems _ ( cf . also @xcite ) . for a natural number @xmath13 and a real vector @xmath14 the mapping @xmath15 defined by @xmath16 \n is called the _ d - dimensional shift radix system associated with @xmath6 _ ( _ srs _ ) ...