The bulletin of Irkutsk State University. Series «Mathematics»

List of issues > Series «Mathematics». 2025. Vol 51

Dynamic Systems and Optimal Control
Elena V. Goncharova, Nikolay I. Pogodaev, Maksim V. Staritsyn Exact Formulas for the Increment of the Cost Functional in Optimal Control of Linear Balance Equation	3
Integro-differential Equations and Functional Analysis
Alexander D. Mednykh, Aydos B. Qutbaev Hyperbolic Volumes of Two Bridge Cone-Manifolds	21
Chandrashekar Balaji, Sokalingam Maruthamanikandan, Chandrappa Rudresha, V. Vidya Shree Ferrohydrodynamic Instability of a Viscoelastic Magnetic Fluid Layer under the Influence of Time-varying Magnetic Field	34
Jagan Mohan Jonnalagadda, Juan E. Napoles Valdes Positive Solutions of Nabla Fractional Sturm–Liouville Problems	50
Kuldipkumar K. Chaudhary, Snehal B. Rao A Note on Extended Saigo Operators and Their q-analogues	66
Algebraic and Logical Methods in Computer Science and Artificial Intelligence
Dostonjon N. Barotov Concave Continuations of Boolean-like Functions and Some of Their Properties	82
Sergey G. Kolesnikov, Anna I. Polovinkina On Regularity of Sylow p-Subgroups of the Chevalley Group of Types F₄, E₆ Over the Ring Z_p^m	101
Denis N. Gavrilin, Andrei V. Mantsivoda Object Ontologies as a Priori Models for Logical-Probabilistic Machine Learning	116
Vladimir I. Panteleev Implicatively Precomplete Sets of Multioperations Defined on a Set of Three Elements	130
Konstantin V. Grekovich, Vladimir V. Rybakov, Vitaliy V. Rimatskiy Intransitive Temporal Multi-agent Logic with Agents’ Multi-valuations. Decidability	141
Gulnara E. Yakhyaeva Classes of Fuzzy Models	151
Personalia
I. V. Bychkov, V. A. Dykhta, A. L. Kazakov, N. I. Pogodaev, V. A. Shelekhov On the 85th Birthday Anniversary of the RAS Corresponding Member, Professor A. A. Tolstonogov	167