Vol. 68 No. 4 (2016)

Research articles

• Polynomial approximation in Bergman spaces

  R. Akgün

  435-448

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• Approximation of some classes of set-valued periodic functions by generalized trigonometric polynomials

  V. V. Babenko, V. F. Babenko, M. V. Polishchuk

  449-459

  • PDF (Russian)

• Maximum principle for the Laplacian with respect to the measure in a domain of the Hilbert space

  Yu. V. Bogdanskii

  460-468

  • PDF (Russian)

• Analogs of the spherical transform on the hyperbolic plane

  V. S. Vasilyanskaya, V. V. Volchkov

  469-484

  • PDF (Russian)

• A note on degree of approximation by matrix means in generalized Hölder metric

  U. Değer

  485-494

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• Jacobi-type block matrices corresponding to the two-dimensional moment problem: polynomials of the second kind and Weyl function

  M. Ye. Dudkin, V. I. Kozak

  495-505

  • PDF (Ukrainian)

• Sufficient conditions for the existence of the $\upsilon$ -density for zeros of entire function of order zero

  N. V. Zabolotskii, M. R. Mostova

  506-516

  • PDF (Ukrainian)

• Global attractors of impulsive infinite-dimensional systems

  O. V. Kapustyan, N. A. Perestyuk

  517-528

  • PDF (Russian)

• On weakly periodic Gibbs measures for the Potts model with external field on the Cayley tree

  M. M. Rakhmatullaev

  529-541

  • PDF (Russian)

• Stability of versions of the Weyl-type theorems under tensor product

  T. Prasad, M. H. M. Rashid

  542-550

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• Multiple Haar basis and m-term appriximations for functions from the Besov classes. I

  V. S. Romanyuk

  551-562

  • PDF (Russian)

• Necessary and sufficient conditions for the invertibility of nonlinear differentiable maps

  V. Yu. Slyusarchuk

  563-576

  • PDF (Ukrainian)