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Перегляд Журнал математической физики, анализа, геометрии за назвою

Репозиторій DSpace/Manakin

Перегляд Журнал математической физики, анализа, геометрии за назвою

Сортувати за: Порядок: Результатів:

  • Daugavet Centers 
    Bosenko, T.; Kadets, V. (Журнал математической физики, анализа, геометрии, 2010)
    An operator G: X → Y is said to be a Daugavet center if ||G + T|| = ||G|| + ||T|| for every rank-1 operator T: X → Y . The main result of the paper is: if G: X →! Y is a Daugavet center, Y is a subspace of a Banach space ...
  • Dependence of Kolmogorov Widths on the Ambient Space 
    Oikhberg, T.; Ostrovski, i M.I. (Журнал математической физики, анализа, геометрии, 2013)
    We study the dependence of the Kolmogorov widths of a compact set on the ambient Banach space.
  • Distance Matrices and Isometric Embeddings 
    Bogomolny, E.; Bohigas, O.; Schmit, C. (Журнал математической физики, анализа, геометрии, 2008)
    We review the relations between distance matrices and isometric embeddings and give simple proofs that distance matrices de ned on euclidean and spherical spaces have all eigenvalues except one nonpositive. Several ...
  • Distribution of Eigenvalues of Sample Covariance Matrices with Tensor Product Samples 
    Tieplova, D. (Журнал математической физики, анализа, геометрии, 2017)
    We consider the n² × n² real symmetric and hermitian matrices Mₙ, which are equal to the sum mn of tensor products of the vectors Xμ = B(Yμ ⊗ Yμ), μ = 1, . . . ,mn, where Yμ are i.i.d. random vectors from Rⁿ(Cⁿ) with zero ...
  • Dominated Convergence and Egorov Theorems for Filter Convergen 
    Kadets, V.; Leonov, A. (Журнал математической физики, анализа, геометрии, 2007)
    We study the filters, such that for convergence with respect to this filters the Lebesgue dominated convergence theorem and the Egorov theorem on almost uniform convergence are valid (the Lebesgue filters and the Egorov ...
  • Eigenfunctions of the Cosine and Sine Transforms 
    Katsnelson, V. (Журнал математической физики, анализа, геометрии, 2013)
    A description of the eigensubspaces of the cosine and sine operators is given. The spectrum of each of these two operators consists of two eigen- values 1, -1 and their eigensubspaces are infinite{dimensional. There are ...
  • Eigenvalue Distribution of a Large Weighted Bipartite Random Graph 
    Vengerovsky, V. (Журнал математической физики, анализа, геометрии, 2014)
    We study an eigenvalue distribution of the adjacency matrix A^(N,p,a) of the weighted random bipartite graph Г = ГN,p. We assume that the graph has N vertices, the ratio of parts is α(1-α), and the average number of the ...
  • Eigenvalue Distribution of Bipartite Large Weighted Random Graphs. Resolvent Approach 
    Vengerovsky, V. (Журнал математической физики, анализа, геометрии, 2016)
    We study an eigenvalue distribution of the adjacency matrix A(N,p,α) of the weighted random bipartite graphs
  • Elementary Solutions of the Bernstein Problem on Two Intervals 
    Pausinger, F. (Журнал математической физики, анализа, геометрии, 2012)
    First we note that the best polynomial approximation to jxj on the set, which consists of an interval on the positive half-axis and a point on the negative half-axis, can be given by means of the classical Chebyshev ...
  • Erratum to the paper F.S. Rofe-Beketov "Operator-Theoretical Proof of the Arnold Alternation Theorem and its Generalization" 
    Автор відсутній (Журнал математической физики, анализа, геометрии, 2013)
  • Erratum to the paper I.A. Ryzhkova "On Trace Regularity of Solutions to a Wave Equation with Homogeneous Neumann Boundary Conditions" (J.Math. Phys. Anal. Geom., 3 (2007), No. 4, 468-489) 
    Автор відсутній (Журнал математической физики, анализа, геометрии, 2011)
  • Estimates for the Gaussian Curvature of a Strictly Convex Surface and its Integral Parameters 
    Babenko, V.I. (Журнал математической физики, анализа, геометрии, 2018)
    Closed and non-closed (with planar edges) strictly convex surfaces with continuous curvatures are considered. Upper and lower bounds are obtained for the Gaussian curvature under various restrictions imposed on integral ...
  • Existence of Angular Boundary Values and Cauchy-Green Formula 
    Aliyev, R.A. (Журнал математической физики, анализа, геометрии, 2011)
    The aim of the paper is to find the conditions on the function F(z), determined in the domain G and having in G continuous partial derivatives, for validity of the following statements: i) almost everywhere F(z) has the ...
  • Fluctuations of Interlacing Sequences 
    Sodin, S. (Журнал математической физики, анализа, геометрии, 2017)
    In a series of works published in the 1990s, Kerov put forth various applications of the circle of ideas centered at the Markov moment problem to the limiting shape of random continual diagrams arising in representation ...
  • Foliations of codimension one and Milnor's conjecture 
    Bolotov, D.V. (Журнал математической физики, анализа, геометрии, 2018)
    We prove that a fundamental group of leaves of a codimension one C²- foliation with nonnegative Ricci curvature on a closed Riemannian manifold is finitely generated and almost Abelian, i.e., it contains finitely generated ...
  • From Laplacian Transport to Dirichlet-to-Neumann Gibbs) Semigroups 
    Zagrebnov, V.A. (Журнал математической физики, анализа, геометрии, 2008)
    The paper gives a short account of some basic properties of Dirichlet-to-Neumann operators Λγ∂Ω including the corresponding semigroups motivated by the Laplacian transport in anisotropic media (γ ≠ I) and by elliptic systems ...
  • Functional Model of Commutative Operator Systems 
    Zolotarev, V.A. (Журнал математической физики, анализа, геометрии, 2008)
    A functional model for a commutative system of the linear bounded operators {T₁, T₂}, when T₁ is a contraction, is built.
  • Functional Models in De Branges Spaces of One Class Commutative Operators 
    Syrovatskyi, V.N. (Журнал математической физики, анализа, геометрии, 2014)
    For a commutative system of the linear bounded operators T₁, T₂, which operate in the Hilbert space H and none of the operators T₁, T₂ is a compression, the functional model is constructed. The model is built for a circle ...
  • Gap Control by Singular Schrödinger Operators in a Periodically Structured Metamaterial 
    Exner, Pavel; Khrabustovskyi, Andrii (Журнал математической физики, анализа, геометрии, 2018)
    We consider a family {Hε}ε>0 of εZⁿ-periodic Schrödinger operators with δ′-interactions supported on a lattice of closed compact surfaces; within a minimum period cell one has m ∊ N surfaces. We show that in the limit ...
  • General Addition Formula for Meromorphic Functions Derived from Residue Theorem 
    Yosh, H. (Журнал математической физики, анализа, геометрии, 2010)
    A meromorphic function is characterized by its singularity, and residues of the poles give us various information regarding the function. In the paper the algebraic relations of residues on some meromorphic functions are ...

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