Ukrains’kyi Matematychnyi Zhurnal

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Current Issue

Vol 74 No 7 (2022)

Published: 31.08.2022

Research articles

Probabilistic weak solutions for nonlinear stochastic evolution problems involving pseudomonotone operators

Z. I. Ali, M. Sango

871 - 892
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Reducibility of self-adjoint linear relations and application to generalized Nevanlinna functions

M. Borogovac

893 - 920
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$K$-functionals and extreme problems of the theory of approximation of the classes of analytic functions in a circle. II

S. B. Vakarchuk, M. B. Vakarchuk

921 - 929
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Bounded and summable solutions of a difference equation with piecewise constant operator coefficients

М. F. Horodnii

930 - 938
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Frequency locking of periodic solutions to differential equations with impulsive perturbations

A. V. Dvornyk, V. I. Tkachenko

939 - 960
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On the existence of solutions of quasilinear Beltrami equations with two characteristics

O. P. Dovhopiatyi , E. A. Sevost’yanov

961 - 972
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Averaging method in the problem of optimal control for a perturbed parabolic equation

O. V. Kapustyan , O. M. Stanzhytskyi , I. D. Fartushny

973 - 979
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Evaluation and attainment of weighted performance measures in descriptor control systems

A. G. Mazko

980 - 990
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Generalized derivations acting on multilinear polynomials as a Jordan homomorphisms

S. K. Tiwari, B. Prajapati

991 - 1003
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Short communications

Gauss–Kuzmin problem for the difference Engel-series representation of real numbers

M. P. Moroz

1004 - 1008
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