Vol. 78 No. 3-4 (2026)

Research articles

• Construction of exact solutions of nonlinear heat conduction equations

  A. Barannik, Т. Barannik, I. Yurik

  99–119

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• Group classification of a class of systems of nonlinear diffusion equations. I

  O. Voloshyn, M. Serov, O. Vaneeva

  120–144

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• Boyanov–Naydenov problem and the inequalities of various metrics

  D. Doroshenko, V. Kofanov

  145–159

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• Block matrices corresponding to the strong two-dimensional real moment problem

  V. Kozak, O. Dyuzhenkova

  160–186

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• Differential-symbol method for solving the Nicoletti problem for a homogeneous equation with second-order time partial derivatives

  Z. Nytrebych

  187–198

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• New developments of dynamic inequalities on time scales

  Lütfi Akin, Hilal Orhan

  199–200

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• Geometric properties of a generalized linear operator acting on univalent functions

  Alaattin Akyar, Oya Mert Coşkun

  201–202

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• Convolution theorem and uncertainty principles for the windowed linear canonical Lions transform

  Abdelaali Dades, Othman Tyr

  203–204

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• Semi-central Bott–Duffin $(e,f)$-inverses

  Li Fang, Liang Zhao

  205–206

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• On the dissipative Sturm–Liouville problem with transmission conditions depending on the eigenparameter

  Fei-fan Li, Ji-jun Ao

  207–208

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• Optimal control of Goursat–Darboux-type polyhedral differential inclusions

  Elimhan N. Mahmudov

  209–210

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• Some properties of subclasses of spiral-like functions involving beta-negative binomial distribution

  Eureka Pattnayak, Trailokya Panigrahi, Rabha M. El-Ashwah

  211

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• Critical point equation on $K$-contact generalized Sasakian space form

  R. C. Pavithra, H. G. Nagaraja

  212

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• The dual affine log-Minkowski inequality

  Chang-Jian Zhao

  213

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• IVAN OLEKSANDROVYCH LUKOVS’KYI (24.09.1935–15.05.2024)

  O. Tymokha V. Makarov, O. Mazko

  214–217

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• Cumulant expansions of operator groups of quantum many-particle systems

  I. Gapyak, V. Gerasimenko

  218–234

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• Attainment of weighted performance measures and spectrum localization in descriptor control systems

  A. Mazko

  235–249

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• Differential equation of minimal order for a system of polynomials

  V. Makarov, O. Kashpur

  250–256

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• Delay factors and genesis of the limit sets for a nonideal “tank with liquid–electric motor” system

  I. Seit-Dzhelil, A. Shvets

  257–273

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• Thermal stresses in a rectangular bar

  Yu. Tokovyy, M. Yuzvyak

  274–287

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• Ritz method in the problem of free vibrations of thin elastic shells

  Yu. Trotsenko

  288–297

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• On the generalization of the Newton–Kantorovich theorem for nonlinear operator equations

  S. Chuiko, O. Nesmelova

  298–304

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