Results for "Koji Sugitani"

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Magnetic stability of massive star forming clumps in RCW 106Apr 12 2019Apr 16 2019The RCW 106 molecular cloud complex is an active massive star-forming region where a ministarburst is taking place. We examined its magnetic structure by near-IR polarimetric observations with the imaging polarimeter SIRPOL on the IRSF 1.4 m telescope. ... More
Quantum symmetric spaces and related q-orthogonal polynomialsMar 27 1995A class of quantum analogues of compact symmetric spaces of classical type is introduced by means of constant solutions to the reflection equations. Their zonal spherical functions are discussed in connection with $q$-orthogonal polynomials.
Convergence of the immersed-boundary finite-element method for the Stokes problemNov 22 2016Convergence results for the immersed boundary method applied to a model Stokes problem with the homogeneous Dirichlet boundary condition are presented. As a discretization method, we deal with the finite element method. First, the immersed force field ... More
Detection of Molecular Hydrogen Emission Associated with LkHalpha 264Oct 11 2003We have detected emission of molecular hydrogen from a classical T Tauri star, LkHalpha 264 in the v=1-0 S(1) line at 2.122 micron. The line velocity is coincident with the rest velocity of the star. The line profile is well reproduced by a model in which ... More
Clustering of Emission-line Stars in the W5E HII regionFeb 19 2008We have made a new survey of emission-line stars in the W5E HII region to investigate the population of PMS stars near the OB stars by using the Wide Field Grism Spectrograph 2 (WFGS2). A total of 139 H-alpha emission stars were detected and their g'i'-photometry ... More
Cluster formation in the W40 and Serpens South complex triggered by the expanding HII regionSep 26 2018We present results of the mapping observations covering a large area of 1 square degree around W40 and Serpens South carried out in the 12CO (J=1-0), 13CO (J=1-0), C18O (J=1-0), CCS (J_{N}=8_{7}-7_{6}), and N_2H+ (J=1-0) emission lines with the 45 m Nobeyama ... More
An Investigation on the Morphological Structure of IC59: A New Type of Morphology of BRCs?Jan 05 2010With references to recent observational results on the nebula IC59, we applied our previously developed Smoothed Particle Hydrodynamics (SPH) code which is based on Radiative Driven Implosion (RDI) model, to investigate the possible formation mechanism ... More
Interstellar Extinction Law toward the Galactic Center II: V, J, H, and Ks BandsFeb 25 2008We have determined the ratios of total to selective extinction directly from observations in the optical V band and near-infrared J band toward the Galactic center. The OGLE (Optical Gravitational Lensing Experiment) Galactic bulge fields have been observed ... More
Mapping dust column density in dark clouds by using NIR scattered light : Case of the Lupus 3 dark cloudSep 05 2008We present a method of mapping dust column density in dark clouds by using near-infrared scattered light. Our observations of the Lupus 3 dark cloud indicate that there is a well defined relation between (1) the H-Ks color of an individual star behind ... More
Sequential Formation of Low-Mass Stars in the BRC 14 RegionMay 23 2006We have carried out a deep near-infrared survey of a bright-rimmed molecular cloud, BRC 14 (IC 1848A). The 10 sigma limiting magnitude of the survey is 17.7 mag at the K-band. Seventy-four sources are classified as young stellar object (YSO) candidates ... More
Interstellar Extinction Law toward the Galactic Center III: J, H, Ks bands in the 2MASS and the MKO systems, and 3.6, 4.5, 5.8, 8.0 micron in the Spitzer/IRAC systemFeb 18 2009We have determined interstellar extinction law toward the Galactic center (GC) at the wavelength from 1.2 to 8.0 micron, using point sources detected in the IRSF/SIRIUS near-infrared survey and those in the 2MASS and Spitzer/IRAC/GLIMPSE II catalogs. ... More
Exchange Monte Carlo Method and Application to Spin Glass SimulationsDec 06 1995We propose an efficient Monte Carlo algorithm for simulating a ``hardly-relaxing" system, in which many replicas with different temperatures are simultaneously simulated and a virtual process exchanging configurations of these replica is introduced. This ... More
The Distance to the Galactic Center Derived From Infrared Photometry of Bulge Red Clump StarsJul 18 2006On the basis of the near infrared observations of bulge red clump stars near the Galactic center, we have determined the galactocentric distance to be R_0 = 7.52 +- 0.10 (stat) +- 0.35 (sys) kpc. We observed the red clump stars at |l| < 1.0 deg and 0.7 ... More
Near-IR Imaging Polarimetry toward a Bright-Rimmed Cloud: Magnetic Field in SFO 74Nov 07 2014We have made near-infrared (JHKs) imaging polarimetry of a bright-rimmed cloud (SFO 74). The polarization vector maps clearly show that the magnetic field in the layer just behind the bright rim is running along the rim, quite different from its ambient ... More
Interferometric Observations of the T Tauri Stars in the MBM 12 CloudFeb 24 2003We have carried out a millimeter interferometric continuum survey toward 7 YSOs in the MBM 12 cloud. Thermal emissions associated with 2 YSOs were detected above the 3-$\sigma$ level at 2.1 mm, and one also showed a 1.3 mm thermal emission. Another object ... More
Probable association of T Tauri stars with the L1014 dense coreAug 23 2006Oct 16 2006Using the Wide Field Grism Spectrograph 2 (WFGS2), we have carried out slit-less spectroscopy, g'r'i' photometry, and slit spectroscopy on the L1014 dense core. We detected three Halpha emission line stars. We interpret one as weak-line T Tauri star (WTTS) ... More
Near-Infrared Imaging Polarimetry of the Serpens Cloud Core: Magnetic Field Structure, Outflows, and Inflows in A Cluster Forming ClumpApr 20 2010We made deep NIR imaging polarimetry toward the Serpens cloud core. The polarization vector maps enable us to newly detect 24 small IR reflection nebulae with YSOs. Polarization measurements of NIR point sources indicate an hourglass-shaped magnetic field, ... More
The Dynamical State of The Serpens South Filamentary Infrared Dark CloudSep 10 2013We present the results of N$_2$H$^+$ ($J=1-0$) observations toward Serpens South, the nearest cluster-forming, infrared dark cloud. The physical quantities are derived by fitting the hyperfine structure of N$_2$H$^+$. The Herschel and 1.1-mm continuum ... More
Magnetic stability of massive star forming clumps in RCW 106Apr 12 2019The RCW~106 molecular cloud complex is an active massive star-forming region where a ministarburst is taking place. We examined its magnetic structure by near-IR polarimetric observations with the imaging polarimeter SIRPOL on the IRSF 1.4 m telescope. ... More
Solvability of HornSAT and CNFSATDec 30 2012This article describes the solvability of HornSAT and CNFSAT. Unsatisfiable HornCNF have partially ordered set that is made by causation of each clauses. In this partially ordered set, Truth value assignment that is false in each clauses become simply ... More
NP is not AL and P is not NC is not NL is not LOct 02 2011Nov 21 2011This paper talk about that NP is not AL and P, P is not NC, NC is not NL, and NL is not L. The point about this paper is the depend relation of the problem that need other problem's result to compute it. I show the structure of depend relation that could ... More
Shift of Fermi level by substitutional impurity-atom doping in diamond and cubic- and hexagonal-boron nitridesJun 24 2014Dec 10 2014The density of states and the band diagrams were computed for diamond, cubic boron nitrde (cBN), and hexagonal boron nitride (hBN) using a Korringa-Kohn-Rostoker (KKR) scheme to investigate the shift of the Fermi level by impurity-atom doping below 10 ... More
Multipartite omnidirectional generalized Bell inequalityMay 14 2007Sep 10 2007We derive a multipartite generalized Bell inequality which involves the entire range of settings for each of the local observers. Especially, it is applied to show non-local behavior of a six-qubit mixture of Greenberger-Horne-Zeilinger correlations stronger ... More
Inequalities for experimental tests of the Kochen-Specker theoremDec 05 2003May 30 2005We derive inequalities for $n$ spin-1/2 systems under the assumption that the hidden-variable theoretical joint probability distribution for any pair of commuting observables is equal to the quantum mechanical one. Fine showed that this assumption is ... More
RS Ophiuchi in Quiescence: Why is it X-ray Faint?Mar 19 2008The short interval between successive outbursts of RS Oph strongly suggests that it has a high mass white dwarf accreting at a high rate. This, in turn, suggests the possibility of prominent X-ray emission from RS Oph in quiescence. However, archival ... More
Generalized Supersymetric Boundary StateSep 14 1999Apr 11 2000Following our previous paper (hep-th/9909027), we generalize a supersymmetric boundary state so that arbitrary configuration of the gauge field coupled to the boundary of the worldsheet is incorpolated. This generalized boundary state is BRST invariant ... More
String Junction from Worldsheet Gauge TheoryAug 31 1998Sep 06 1999We study the three-pronged strings (three string junctions) from the point of view of D-string worldsheet gauge theory. We justify interpreting kink solutions in the 2-dimensional gauge theory as pronged strings by examining BPS energy bounds obtained ... More
Fokker-Planck Models of Star Clusters with Anisotropic Velocity Distributions. I. Pre-Collapse EvolutionJul 12 1995The evolution of a spherical single-mass star cluster is followed in detail up to core collapse by numerically solving the orbit-averaged two-dimensional Fokker-Planck equation in energy-angular momentum space. Velocity anisotropy is allowed in the two-dimensional ... More
Fokker-Planck Models of Star Clusters with Anisotropic Velocity Distributions. II. Post-Collapse EvolutionSep 04 1996The evolution of spherical single-mass star clusters driven by two-body relaxation was followed beyond core collapse by numerically solving the orbit-averaged Fokker-Planck equation in energy--angular momentum space. The heating effect by three-body binaries ... More
Subgroups generated by two pseudo-Anosov elements in a mapping class group. II. Uniform bound on exponentsAug 07 2009Let $S$ be a compact orientable surface, and $\Mod(S)$ its mapping class group. Then there exists a constant $M(S)$, which depends on $S$, with the following property. Suppose $a,b \in \Mod(S)$ are independent (i.e., $[a^n,b^m]\not=1$ for any $n,m \not=0$) ... More
Quantizing the Bäcklund transformations of Painlevé equations and the quantum discrete Painlevé VI equationMar 01 2007Based on the works by Kajiwara, Noumi and Yamada, we propose a canonically quantized version of the rational Weyl group representation which originally arose as "symmetries" or the B\"acklund transformations in Painlev\'{e} equations. We thereby propose ... More
Strongly Regular Cayley Graphs, Skew Hadamard Difference Sets, and Rationality of Relative Gauss SumsFeb 28 2012In this paper, we give constructions of strongly regular Cayley graphs and skew Hadamard difference sets. Both constructions are based on choosing cyclotomic classes in finite fields, and our results generalize ten of the eleven sporadic examples of cyclotomic ... More
Pattern occurrence in the dyadic expansion of square root of two and an analysis of pseudorandom number generatorsSep 18 2009Recently, designs of pseudorandom number generators (PRNGs) using integer-valued variants of logistic maps and their applications to some cryptographic schemes have been studied, due mostly to their ease of implementation and performance. However, it ... More
Near-Infrared Extinction in The Coalsack Globule 2Dec 21 2006We have conducted J, H, and Ks imaging observations for the Coalsack Globule 2 with the SIRIUS infrared camera on the IRSF 1.4 m telescope at SAAO, and determined the color excess ratio, E(J-H)/E(H-Ks). The ratio is determined in the same photometric ... More
Classification of local realistic theoriesOct 10 2007Mar 30 2008Recently, it has shown that an explicit local realistic model for the values of a correlation function, given in a two-setting Bell experiment (two-setting model), works only for the specific set of settings in the given experiment, but cannot construct ... More
Small Jump with Negation-UTM TrampolineDec 05 2011Oct 11 2014This paper divide some complexity class by using fixpoint and fixpointless area of Decidable Universal Turing Machine (UTM). Decidable Deterministic Turing Machine (DTM) have fixpointless combinator that add no extra resources (like Negation), but UTM ... More
Finite and infinite basis in P and NPDec 02 2012Jan 27 2015This article provide new approach to solve P vs NP problem by using cardinality of bases function. About NP-Complete problems, we can divide to infinite disjunction of P-Complete problems. These P-Complete problems are independent of each other in disjunction. ... More
Corrections to D-brane Action and Generalized Boundary StateSep 06 1999Oct 05 1999In this paper, we generalize a boundary state to the one incorporating non-constant gauge field strength as an external background coupled to the boundary of a string worldsheet in bosonic string theory. This newly defined boundary state satisfies generalized ... More
Mixed quantal-semiquantal dynamics with stochastic particles for backreactionAug 14 2014A mixed quantal-semiquantal theory is presented in which the semiquantal squeezed-state wave packet describes the heavy degrees of freedom. We first derive mean-field equations of motion from the time-dependent variational principle. Then, in order to ... More
Asymptotically isometric metrics on relatively hyperbolic groups and marked length spectrumNov 04 2013Nov 15 2013We prove asymptotically isometric, coarsely geodesic metrics on a toral relatively hyperbolic group are coarsely equal. The theorem applies to all lattices in SO(n,1). This partly verifies a conjecture by Margulis. In the case of hyperbolic groups/spaces, ... More
Optimal Quantization of Signals for System IdentificationMay 12 2009In this paper, we examine the optimal quantization of signals for system identification. We deal with memoryless quantization for the output signals and derive the optimal quantization schemes. The objective functions are the errors of least squares parameter ... More
Almost central involutions in split extensions of Coxeter groups by graph automorphismsDec 10 2005In this paper, given a split extension of an arbitrary Coxeter group by automorphisms of the Coxeter graph, we determine the involutions in that extension whose centralizer has finite index. Our result has applications to many problems such as the isomorphism ... More
On centralizers of parabolic subgroups in Coxeter groupsJan 05 2005Jan 08 2012Let $W$ be an arbitrary Coxeter group, possibly of infinite rank. We describe a decomposition of the centralizer $Z_W(W_I)$ of an arbitrary parabolic subgroup $W_I$ into the center of $W_I$, a Coxeter group and a subgroup defined by a 2-cell complex. ... More
On a conjecture for representations of integers as sums of squares and double shuffle relationsDec 24 2011Jan 17 2012In this paper, we prove a conjecture of Chan and Chua for the number of representations of integers as sums of 8s integral squares. The proof uses a theorem of Imamo\={g}lu and Kohnen, and the double shuffle relations satisfied by the double Eisenstein ... More
On some families of divisible formal weight enumerators and their zeta functionsSep 11 2017The formal weight enumerators were first introduced by M. Ozeki, and it was shown in the author's previous paper that there are various families of divisible formal weight enumerators. Among them, three families are dealt with in this paper and their ... More
Construction of divisible formal weight enumerators and extremal polynomials not satisfying the Riemann hypothesisSep 11 2017May 21 2018The formal weight enumerators were first introduced by M. Ozeki. They form a ring of invariant polynomials which is similar to that of the weight enumerators of Type II codes. Later, the zeta functions for linear codes were discovered and their theory ... More
On some families of invariant polynomials divisible by three and their zeta functionsSep 11 2017In this note, we establish an analog of the Mallows-Sloane bound for Type III formal weight enumerators. This completes the bounds for all types (Types I through IV) in synthesis of our previous results. Next we show by using the binomial moments that ... More
An abundance of invariant polynomials satisfying the Riemann hypothesisApr 30 2007In 1999, Iwan Duursma defined the zeta function for a linear code as a generating function of its Hamming weight enumerator. It can also be defined for other homogeneous polynomials not corresponding to existing codes. If the homogeneous polynomial is ... More
A Characterization of Signed Graphs with Generalized Perfect Elimination OrderingsDec 26 2007Feb 03 2009An important property of chordal graphs is that these graphs are characterized by existence of perfect elimination orderings on their vertex sets. In this paper, we generalize the notion of perfect elimination orderings to signed graphs, and give a characterization ... More
Necessary and sufficient condition for Greenberger-Horne-Zeilinger diagonal states to be full $N$-partite entangledSep 10 2007Nov 28 2008Recently, [{arXiv:0810.3134}] is accepted and published. We show that any $N$-qubit state which is diagonal in the Greenberger-Horne-Zeilinger basis is full $N$-qubit entangled state if and only if no partial transpose of the multiqubit state is positive ... More
Kochen-Specker theorem as a precondition for secure quantum key distributionMar 17 2005May 23 2005We show that (1) the violation of the Ekert 91 inequality is a sufficient condition for certification of the Kochen-Specker (KS) theorem, and (2) the violation of the Bennett-Brassard-Mermin 92 (BBM) inequality is, also, a sufficient condition for certification ... More
Additional information decreases the estimated entanglement using the Jaynes principleJan 13 2008Mar 30 2008We study a particular example considered in {[Phys. Rev. A {\bf 59,} 1799 (1999)]}, concerning the statistical inference of quantum entanglement using the Jaynes principle. Assume a Clauser-Horne-Simony-Holt (CHSH) Bell operator, a sum of two operators ... More
There is no axiomatic system for the quantum theoryNov 20 2007Nov 28 2008Recently, [arXiv:0810.3134] is accepted and published. We derive an inequality with two settings as tests for the existence of the Bloch sphere in a spin-1/2 system. The probability theory of measurement outcome within the formalism of von Neumann projective ... More
The Skyrme Model Revisited: An Effective Theory Approach and Application to the PentaquarksOct 20 2004The Skyrme model is reconsidered from an effective theory point of view. Starting with the most general Lagrangian up to including terms of order $p^4$, $N_c$ and $\delta m^2$ ($\delta m\equiv m_s-m$), we obtain new interactions, which have never been ... More
Classification of mixed high-dimensional multiparticle systemsOct 31 2005We present an inequality that classifies mixed multipartite systems of an arbitrary dimension with respect to separability and positivity of partial transpose properties. This inequality gives a way to experimentally classify the observed state of multipartite ... More
X-ray Spectroscopy of Cataclysmic VariablesDec 03 2001In cataclysmic variables (CVs), accretion onto white dwarfs produces high temperature, high density plasmas. They cool down from kT~10 keV via bremsstrahlung continuum and K and L shell line emissions. The small volume around white dwarfs means that the ... More
An alternative model of the magnetic cataclysmic variable V1432 Aquilae (=RX J1940.1-1025)Oct 07 1997V1432 Aql is currently considered to be an asynchronous AM Her type system, with an orbital period of 12116.3 s and a spin period of 12150 s. I present an alternative model in which V1432 Aql is an intermediate polar with disk overflow or diskless accretion ... More
Symmetry and Uncountability of ComputationAug 13 2010Sep 23 2010This paper talk about the complexity of computation by Turing Machine. I take attention to the relation of symmetry and order structure of the data, and I think about the limitation of computation time. First, I make general problem named "testing problem". ... More
Topological approach to solve P versus NPFeb 06 2012Oct 14 2012This paper talks about difference between P and NP by using topological space that mean resolution principle. I pay attention to restrictions of antecedent and consequent in resolution, and show what kind of influence the restrictions have for difference ... More
Dynamical Decay of Brane-Antibrane and Dielectric BraneApr 24 2002Jun 12 2002Using D-brane effective field theories, we study dynamical decay of unstable brane systems : (i) a parallel brane-antibrane pair with separation l and (ii) a dielectric brane. In particular we give explicitly the decay width of these unstable systems, ... More
Holographic NucleiSep 18 2008Oct 22 2008We provide a dual gravity description of heavy atomic nuclei, via AdS/CFT correspondence. In holographic QCD such as Sakai-Sugimoto model, baryons are D-branes wrapping a sphere in 10 dimensional curved spacetime, so any nucleus is a collection of $A$ ... More
Gauge Symmetry Breaking in Models inspired by Non-Commutative GeometryMar 14 1999Sep 06 1999In models inspired by non-commutative geometry, patterns of gauge symmetry breaking are analyzed, and SU(5) models are found to naturally favor a vacuum preserving SU(3) X SU(2) X U(1). A more realistic model is presented, and the possibility of D-brane ... More
The second bounded cohomology of a group with infinitely many endsMay 16 1995We study the second bounded cohomology of an amalgamated free product of groups, and an HNN extension of a group. As an application, we have a group with infinitely many ends has infinite dimensional second bounded cohomology.
X-ray Emissions from Accreting White Dwarfs: a ReviewMar 17 2017Interacting binaries in which a white dwarf accretes material from a companion - cataclysmic variables (CVs) in which the mass donor is a Roche-lobe filling star on or near the main sequence, and symbiotic stars in which the mass donor is a late type ... More
Constancy of generalized Hodge-Tate weights of a local systemOct 24 2017Sen attached to each p-adic Galois representation of a p-adic field a multiset of numbers called generalized Hodge-Tate weights. In this paper, we discuss a rigidity of these numbers in a geometric family. More precisely, we consider a p-adic local system ... More
On Poisson approximations for the Ewens sampling formula when the mutation parameter grows with the sample sizeApr 22 2017The Ewens sampling formula was firstly introduced in the context of population genetics by Warren John Ewens in 1972, and has appeared in a lot of other scientific fields. There are abundant approximation results associated with the Ewens sampling formula ... More
Existence of compatible systems of lisse sheaves on arithmetic schemesSep 19 2015Nov 23 2016Deligne conjectured that a single l-adic lisse sheaf on a normal variety over a finite field can be embedded into a compatible system of l'-adic lisse sheaves with various l'. Drinfeld used Lafforgue's result as an input and proved this conjecture when ... More
Skew Hadamard difference sets from cyclotomic strongly regular graphsJul 09 2012Aug 27 2012We find new constructions of infinite families of skew Hadamard difference sets in elementary abelian groups under the assumption of the existence of cyclotomic strongly regular graphs. Our construction is based on choosing cyclotomic classes in finite ... More
Locally parabolic subgroups in Coxeter groups of arbitrary ranksJun 24 2010Nov 10 2011Despite the significance of the notion of parabolic closures in Coxeter groups of finite ranks, the parabolic closure is not guaranteed to exist as a parabolic subgroup in a general case. In this paper, first we give a concrete example to clarify that ... More
Multipartite positive-partial-transpose inequalities exponentially stronger than local reality inequalitiesJul 18 2007We show that positivity of {\it every} partial transpose of $N$-partite quantum states implies new inequalities on Bell correlations which are stronger than standard Bell inequalities by a factor of $2^{(N-1)/2}$. A violation of the inequality implies ... More
Comment on ``All quantum observables in a hidden-variable model must commute simultaneously"Aug 05 2004Nov 13 2008Malley discussed {[Phys. Rev. A {\bf 69}, 022118 (2004)]} that all quantum observables in a hidden-variable model for quantum events must commute simultaneously. In this comment, we discuss that Malley's theorem is indeed valid for the hidden-variable ... More
Unconditional no-hidden-variables theoremJan 13 2008Nov 28 2008Recently, [{arXiv:0810.3134}] is accepted and published. We present ultimate version of no-hidden-variables theorem. We derive a proposition concerning the quantum theory under the existence of the Bloch sphere in a single spin-1/2 system. The existence ... More
Realism violates quantum mechanicsMay 20 2007Nov 28 2008Recently, [{arXiv:0810.3134}] is accepted and published. We show that local realistic theories violate separability of $N$-qubit quantum states by a factor of $3^N$. Thus we have a violation factor of 3 when N=1. Realistic theories violate a proposition ... More
Short collusion-secure fingerprint codes against three piratesDec 15 2010In this article, we propose a new construction of probabilistic collusion-secure fingerprint codes against up to three pirates and give a theoretical security evaluation. Our pirate tracing algorithm combines a scoring method analogous to Tardos codes ... More
Problems in the derivations of the renormalization group equation for the low momentum nucleon interactionsMar 31 2008May 30 2008We carefully examine all the four derivations of the renormalization group equation (RGE) for the so-called $\Vlk$ potential, given by Bogner, \textit{et. al.}[nucl-th/0111042]. Two derivations based on the ``semi-group composition law'' are shown to ... More
RPA for Light-Front Hamiltonian Field TheoryMar 23 1999Apr 19 1999A self-consistent random phase approximation (RPA) is proposed as an effective Hamiltonian method in Light-Front Field Theory (LFFT). We apply the general idea to the light-front massive Schwinger model to obtain a new bound state equation and solve it ... More
Fluxons and Exact BPS Solitons in Non-Commutative Gauge TheoryOct 26 2000Nov 15 2000We show that the fluxon solution of the non-commutative gauge theory and its variations are obtained by the soliton generation method recently given by J. A. Harvey, P. Kraus and F. Larsen [hep-th/0010060]. Although this method generally produces non-BPS ... More
Fokker-Planck Models of Star Clusters with Anisotropic Velocity Distributions. III. Multi-Mass ClustersMar 29 1997The evolution of globular clusters driven by two-body relaxation is investigated by means of numerical integration of the two-dimensional Fokker-Planck equation in energy--angular momentum space. The two- dimensional Fokker-Planck equation allows the ... More
Value Constraint and Monotone circuitNov 25 2012This paper talks about that monotone circuit is P-Complete. Decision problem that include P-Complete is mapping that classify input with a similar property. Therefore equivalence relation of input value is important for computation. But monotone circuit ... More
Ruijsenaars' commuting difference operators as commuting transfer matricesDec 25 1995For Belavin's elliptic quantum R-matrix, we construct an L-operator as a set of difference operators acting on functions on the type A weight space. According to the fundamental relation $RLL=LLR$, the trace of the L-operator gives a commuting difference ... More
AdS/CFT as a deep Boltzmann machineMar 12 2019We provide a deep Boltzmann machine (DBM) for the AdS/CFT correspondence. Under the philosophy that the bulk spacetime is a neural network, we give a dictionary between those, and obtain a restricted DBM as a discretized bulk scalar field theory in curved ... More
Molecular Configurations Around Single Vacancy in Solid CO2 at 0, 100, and 200 K Studied by Monte Carlo SimulationSep 12 2018The configurations of the molecules nearest to a single vacancy in solid CO2 were studied by the Metropolis Monte Carlo (MC) simulation at temperatures T = 0, 100, and 200 K. It was found that distorted orientational configurations at T = 0 and 100 K ... More
A Comprehensive Survey of Potential Game Approaches to Wireless NetworksJun 26 2015Potential games form a class of non-cooperative games where unilateral improvement dynamics are guaranteed to converge in many practical cases. The potential game approach has been applied to a wide range of wireless network problems, particularly to ... More
The Euler Characteristic Formula for Logarithmic Minimal Degenerations of Surfaces with Kodaira Dimension Zero and its application to Calabi-Yau Threefolds with a pencilOct 19 2007In this paper, the Euler characteristic formula for projective logarithmic minimal degenerations of surfaces with Kodaira dimension zero over a 1-dimensional complex disk is proved under a reasonable assumption and as its application, the singularity ... More
Construction of strongly regular Cayley graphs based on three-valued Gauss periodsMay 22 2017In this paper, we give a construction of strongly regular Cayley graphs on the additive groups of finite fields based on three-valued Gauss periods. As consequences, we obtain two infinite families and one sporadic example of new strongly regular Cayley ... More
Error bounds for the normal approximation to the length of a Ewens partitionApr 03 2019Let $K(=K_{n,\theta})$ be a positive integer-valued random variable whose distribution is given by ${\rm P}(K = x) = \bar{s}(n,x) \theta^x/(\theta)_n$ $(x=1,\ldots,n) $, where $\theta$ is a positive number, $n$ is a positive integer, $(\theta)_n=\theta(\theta+1)\cdots(\theta+n-1)$ ... More
Quantum-noise-limited Angular Momentum Measurement for a Micron-sized Dielectric ObjectDec 28 2007An approach is described for observing quantum features of micron-sized spinning objects. Specifically, we consider a birefringent (uniaxial positive) dielectric object in the shape of an oblate (i.e., frisbee-like) symmetric top. It can be trapped in ... More
A characterization of finitely generated reflection subgroups of Coxeter groups orthogonal to a reflectionMar 28 2006Jan 17 2012Given a reflection $r$ in a Coxeter group $W$ (possibly of infinite rank), we consider the subgroup of $W$ generated by the reflections in $W$ having (-1)-eigenvectors orthogonal to the (-1)-eigenvector of $r$. In this paper, we determine completely when ... More
Zeta functions for formal weight enumerators and an analogue of the Mallows-Sloane boundOct 10 2005In 1999, Iwan Duursma defined the zeta function for a linear code as a generating function of its Hamming weight enumerator. It has various properties similar to those of the zeta function of an algebraic curve. This article extends Duursma's theory to ... More
Extremal invariant polynomials not satisfying the Riemann hypothesisSep 11 2017Zeta functions for linear codes were defined by Iwan Duursma in 1999. They were generalized to the case of some invariant polynomials by the preset author. One of the most important problems is whether extremal weight enumerators satisfy the Riemann hypothesis. ... More
Dark Matter in Classically Scale-Invariant Two Singlets Standard ModelDec 12 2011Mar 05 2012We consider a model where two new scalars are introduced in the standard model, assuming classical scale invariance. In this model the scale invariance is broken by quantum corrections and one of the new scalars acquires non-zero vacuum expectation value ... More
Resolution structure in HornSAT and CNFSATApr 07 2013This article describes about the difference of resolution structure and size between HornSAT and CNFSAT. We can compute HornSAT by using clauses causality. Therefore we can compute proof diagram by using Log space reduction. But we must compute CNFSAT ... More
Connection and Dispersion of ComputationJun 27 2011Aug 09 2011This paper talk about the influence of Connection and Dispersion on Computational Complexity. And talk about the HornCNF's connection and CNF's dispersion, and show the difference between CNFSAT and HornSAT. First, I talk the relation between MUC decision ... More
Shift of Fermi level by substitutional impurity-atom doping in diamond and cubic- and hexagonal-boron nitrides II. Generalized Gradient ApproximationDec 21 2014In succession to the first paper (arXiv 1406.6204v5), the impurity-atom concentrations when the Fermi levels are either at the valence band maximum (VBM) or the conduction band minimum (CBM) were identified for diamond, cubic boron nitride (cBN), and ... More
Violation of time symmetryJun 09 2004Nov 28 2008Recently, [{arXiv:0810.3134}] is accepted and published. We would like to study the relation between a local realistic theory and commutativity of observables in a finite-dimensional space. We would like to conjecture that a realistic theory of the Bell ... More
Existence of compatible systems of lisse sheaves on arithmetic schemesSep 19 2015Deligne conjectured that a single l-adic lisse sheaf on a normal variety over a finite field can be embedded into a compatible system of l'-adic lisse sheaves with various l'. Drinfeld used Lafforgue's result as an input and proved this conjecture when ... More
Possibility of ferromagnetic neutron matterDec 22 2014Jan 13 2015We study ferromagnetism at high density of neutrons in the QCD hadron phase, by using the simplest chiral effective model incorporating magnetic fields and the chiral anomaly. Under the assumption of spatial homogeneity, we calculate the energy density ... More
Holographic Nuclei : Supersymmetric ExamplesOct 13 2009Nov 15 2009We provide a dual gravity description of a supersymmetric heavy nucleus, following the idea of our previous paper arXiv:0809.3141. The supersymmetric nucleus consists of a merginal bound state of $A$ baryons distributed over a ball in 3 dimensions. In ... More
The shape of nonabelian D-branesJan 08 2004Jan 29 2004We evaluate bulk distribution of energies, pressures and various D-brane/F-string charges generated by nontrivial matrix configurations in nonabelian D-brane effective field theories, using supergravity source density formulas derived originally in Matrix ... More
Born-Infeld Dynamics in Uniform Electric FieldMay 22 1999Jun 09 1999We investigate various properties of classical configurations of the Born-Infeld theory in a uniform electric field. This system is involved with dynamics of (F,Dp) bound states, which are bound states of fundamental strings and Dp-branes. The uniform ... More