Vol. 128 No. 4 (2025): Journal of Mathematics, Mechanics and Computer Science

Published: 2026-02-25

Mathematics

CONVEXITY AND CONCAVITY IN SUBMAJORIZATION INEQUALITIES FOR τ-MEASURABLE OPERATORS

Dostilek Dauitbek

3-11
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155 131
REDUCTION THEOREMS FOR DISCRETE HARDY OPERATOR ON MONOTONE SEQUENCE CONES (0

Nurzhan Bokayev , Amiran Gogatishvili, Nurgul Kuzeubayeva

12-24
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133 123
The ILL-POSEDNESS OF THE MIXED PROBLEM IN THE CYLINDRICAL DOMAIN FOR THE MULTIDIMENSIONAL LAVRENTIEV-BITSADZE EQUATION

Serik Aldashev, Sergey Kabanikhin, Maktagali Bektemesov

25-34
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98 78
ON THE UNIQUE SOLVABILITY OF NONLOCAL IN TIME PROBLEMS CONTAINING THE IONKIN OPERATOR IN THE SPATIAL VARIABLE

Ghulam Hazrat Aimal Rasa, Muratkan Madiyarov , Mergul Mustafina

35-57
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104 77
ON THE OPTIMAL RECOVERY OF FUNCTIONS FROM THE CLASS W^{r,α}_2

Aigerim Bazarkhanova, Adilzhan Utesov, Tabyash Oktyabr

58-71
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117 101
АN ELLIPTIC SELF-ADJOINT OPERATOR OF THE SECOND ORDER ON A GRAPH WITH SMALL EDGES

Maral Konyrkulzhayeva, Gauhar Auzerkhan

72-91
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88 69
IMPROVEMENT IN VOLTERRA-FREDHOLM INTEGRO-DIFFERENTIAL EQUATIONS BY ADOMIAN DECOMPOSITION METHOD

Islambek Saymanov, Zainidin Eshkuvatov, Davron Khayrullaev, Muzaffar Nurillaev

92-107
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92 136

Applied Mathematics

NUMERICAL SIMULATION OF DECAYING TURBULENCE IN THE PRESENCE OF FREELY MOVING BUOYANT SOLID PARTICLES OF FINITE-SIZE

Dauren Zhakebayev, Yelzada Bakytbek, Kairzhan Karzhaubayev

108-121
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99 81

Mechanics

NUMERICAL ANALYSIS OF FLUIDIZED BED HYDRODYNAMICS WITH OPENFOAM

Nazerke Momysh, Yerzhan Belyayev, Olivier Botella

122-133
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111 90
EXACT SOLUTIONS OF EQUATIONS OF THE TWO-PRIMARY-BODY PROBLEM IN THE RESTRICTED THREE-BODY PROBLEM WITH VARIABLE MASSES

Mukhtar Minglibayev , Balnur Assan

134-147
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111 86