Vol. 78 No. 1-2 (2026)

Research articles

• Actions of Lie algebra $\mathfrak{sl}_2$ on symmetric polynomials and on Young diagrams

  L. Bedratyuk

  3–21

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• Asymptotic behaviour of rapidly varying solutions of a differential equation with rapidly varying nonlinearity

  S. Golubev

  22–37

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• Groups, rings, and algebras: common strategic approaches and mutual influences

  M. Dixon, M. Semko, I. Subbotin

  38–46

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• Automorphisms and endomorphisms of partitions of topological spaces

  S. Maksymenko, E. Polulyakh

  47–70

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• On the behavior of the modulus of $m$-th derivatives of the algebraic polynomials in the whole complex plane without recurrence formula in the weighted Bergman space

  F. G. Abdullayev, M. Imashkyzy

  71–72

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• Zinbiel superalgebras and superbialgebras

  Boujemaa Agrebaoui, Imed Basdouri, Jebli Mohamed Eljoudi

  73–74

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• On the Grüss type inequalities within $p$-disks with applications

  Mohammad W. Alomari

  75–76

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• Solutions of a time-asymmetric boundary-value problem for a third-order equation with variable coefficients

  Yusupjon Apakov, Raxmatilla Umarov

  77–78

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• Stability of Caputo fractional hyperbolic systems

  Hassen Arfaoui

  79

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• Characterization and classification of sigmoid function and generalized discrete probability distributions series defined by Awolere–Oladipo derivative operator in the analytic univalent function space

  Ibrahim Tunji Awolere, Adeniyi Musibau Gbolagade, Adeniyi Ayeni, Abiodun Tinuoye Oladipo, Şahsene Altınkaya

  80–81

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• Carleson measures on Hardy spaces with bicomplex scalars

  Stanzin Dolkar, Sanjay Kumar

  82

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• Units in the group algebra $FS_{3}$

  Abhinay Kumar Gupta, R. K. Sharma

  83

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• PS-lifting modules

  Engin Kaynar

  84–85

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• On certain geometric properties and Hardy spaces of generalized Bessel–Wright function

  M. U. Nawaz, Mohsan Raza, K. Mehrez

  86–87

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• Coefficient estimates in new subclasses of analytic and bi-univalent functions defined by the combinations of the $q$-derivative and the Sǎlǎgean derivative operator

  Halit Orhan

  88

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• On the forgotten topological index of signed graphs

  Shariefuddin Pirzada, Mir Riyaz ul Rashid

  89–90

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• Kazdan–Warner equation on hypergraphs

  Haigang Zhang, Juan Zhao

  91

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• VITALII PAVLOVYCH MOTORNYI (28.07.1940–21.07.2025)

  O. M. Tymokha, V. L. Makarov, I. O. Shevchuk, V. Ya. Gutlyanskii, V. F. Babenko, S. B. Vakarchuk, O. V. Davydov, V. A. Kofanov, N. V. Parfinovych, A. S. Romanyuk, A. S. Serdyuk, I. V. Sokolenko

  92–96

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