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Vol. 72 No. 12 (2020)

Published: 24.12.2020

Anniversaries

Ivan Oleksandrovych Lukovs’kyi (on his 85th birthday)

1721-1723
- pdf (Ukrainian)

Research articles

Extremal decomposition problem for the complex plane with free poles on the circle

O. K. Bakhtin , L. V. Vyhivska , I. V. Denega

1599-1620
- pdf (Ukrainian)
New generalized trapezoid type inequalities for complex functions defined on unit circle and applications

H. Budak

1621-1632
- pdf
Fractional trapezium-like inequalities involving generalized relative semi- $(m, h_1, h_2 )$ -preinvex mappings on an $m$ -invex set

T. S. Du, C. Y. Luo , Z. Z. Huang , A. Kashuri

1633-1350
- pdf
Existence of solutions for a fractional-order boundary value problem

I. Y. Karaca , D. Oz

1651-1662
- pdf
Some results in quasitopological homotopy groups

T. Nasri, H. Mirebrahimi , H. Torabi

1663-1668
- pdf
Asymptotic integration of singularly perturbed differential algebraic equations with turning points. Part I

A. M. Samoilenko , P. F. Samusenko

1669-1681
- pdf (Ukrainian)
Periodic Coulomb dynamics of two equal negative charges in the field of six equal positive fixed charges

V. I. Skrypnyk

1682-1696
- pdf (Ukrainian)
Existence of three weak solutions for fourth-order elastic beam equations on the whole space

M. R. H. Tavani

1697-1707
- pdf
On asymptotically stability, uniformly stability and boundedness of solutions of nonlinear Volterra integro-differential equations

C. Tunç, S. A. Mohammed

1708-1720
- pdf

Obituaries

Anatolii Mykhailovych Samoilenko

. Editorial board

1595-1598
- PDF (Ukrainian)

Index

Index of volume 72 of „Ukrainian Mathematical Journal”

1724-1728
- PDF (Ukrainian)