Vestnik Yuzhno-Ural'skogo Gosudarstvennogo Universiteta. Seriya "Matematika. Mekhanika. Fizika": Latest issue http://www.mathnet.ru/eng/vyurm 2026, Volume 18, Issue Issue 2 en-gb Copyright 2026, Thu, 02 Jul 2026 00:00:00 +0300 math-net2026_09@mi-ras.ru tche@mi-ras.ru Ambivalence in the assignment of project executors Yu. V. Bugaev, A. V. Kalach, B. E. Nikitin, I. Yu. Shurupova Vestn. Yuzhno-Ural. Gos. Un-ta. Ser. Matem. Mekh. Fiz., 2026, 18:2, 5--16 http://mi.mathnet.ru/eng/vyurm676 Thu, 02 Jul 2026 00:00:00 +0300 Thu, 02 Jul 2026 00:00:00 +0300 http://mi.mathnet.ru/eng/vyurm676 Green's function of the Dirichlet-2 problem for the 4-harmonic equation in a ball V. V. Karachik Vestn. Yuzhno-Ural. Gos. Un-ta. Ser. Matem. Mekh. Fiz., 2026, 18:2, 17--27 http://mi.mathnet.ru/eng/vyurm677 Thu, 02 Jul 2026 00:00:00 +0300 Thu, 02 Jul 2026 00:00:00 +0300 http://mi.mathnet.ru/eng/vyurm677 A study of a mixed control problem for a Leontiev-type semilinear system A. V. Keller, I. M. Manakov Vestn. Yuzhno-Ural. Gos. Un-ta. Ser. Matem. Mekh. Fiz., 2026, 18:2, 28--32 http://mi.mathnet.ru/eng/vyurm678 Thu, 02 Jul 2026 00:00:00 +0300 Thu, 02 Jul 2026 00:00:00 +0300 http://mi.mathnet.ru/eng/vyurm678 Estimation of the time of setting steady-state conditions for newtonian fluid pressure flow through a flat porous layer A. V. Ryazhskih, V. I. Ryazhskih Vestn. Yuzhno-Ural. Gos. Un-ta. Ser. Matem. Mekh. Fiz., 2026, 18:2, 33--38 http://mi.mathnet.ru/eng/vyurm679 Thu, 02 Jul 2026 00:00:00 +0300 Thu, 02 Jul 2026 00:00:00 +0300 http://mi.mathnet.ru/eng/vyurm679 Application of graph neural networks for calculating steady-state modes of electrical power systems V. A. Surin, S. E. Ivanov, M. E. Ivanov, A. V. Korzhov, V. I. Safonov, S. P. Kulik, N. V. Maletin Vestn. Yuzhno-Ural. Gos. Un-ta. Ser. Matem. Mekh. Fiz., 2026, 18:2, 39--46 http://mi.mathnet.ru/eng/vyurm680 Thu, 02 Jul 2026 00:00:00 +0300 Thu, 02 Jul 2026 00:00:00 +0300 http://mi.mathnet.ru/eng/vyurm680 Functions of random variables with a distribution of the hyperbolic cosine type and methods for evaluating integrals of a certain class M. S. Tokmachev Vestn. Yuzhno-Ural. Gos. Un-ta. Ser. Matem. Mekh. Fiz., 2026, 18:2, 47--56 http://mi.mathnet.ru/eng/vyurm681 Thu, 02 Jul 2026 00:00:00 +0300 Thu, 02 Jul 2026 00:00:00 +0300 http://mi.mathnet.ru/eng/vyurm681 Determination of the ultimate fracture deformations of heterogeneous materials under the conditions of high-speed interaction A. E. Kraus Vestn. Yuzhno-Ural. Gos. Un-ta. Ser. Matem. Mekh. Fiz., 2026, 18:2, 57--68 http://mi.mathnet.ru/eng/vyurm682 Thu, 02 Jul 2026 00:00:00 +0300 Thu, 02 Jul 2026 00:00:00 +0300 http://mi.mathnet.ru/eng/vyurm682 Predicting the failure of viscoelastic-plastic structures during long-term operation Yu. S. Nayshtut, V. A. Grachev Vestn. Yuzhno-Ural. Gos. Un-ta. Ser. Matem. Mekh. Fiz., 2026, 18:2, 69--76 http://mi.mathnet.ru/eng/vyurm683 Thu, 02 Jul 2026 00:00:00 +0300 Thu, 02 Jul 2026 00:00:00 +0300 http://mi.mathnet.ru/eng/vyurm683 A hybrid model of large deformations under dynamic impact on coal seams I. E. Shipovskii Vestn. Yuzhno-Ural. Gos. Un-ta. Ser. Matem. Mekh. Fiz., 2026, 18:2, 77--85 http://mi.mathnet.ru/eng/vyurm684 Thu, 02 Jul 2026 00:00:00 +0300 Thu, 02 Jul 2026 00:00:00 +0300 http://mi.mathnet.ru/eng/vyurm684 Surface plasmon polaritons excitation in 2D gold-based nanoresonators of various geometries by a point source M. A. Zagrebina Vestn. Yuzhno-Ural. Gos. Un-ta. Ser. Matem. Mekh. Fiz., 2026, 18:2, 86--93 http://mi.mathnet.ru/eng/vyurm685 Thu, 02 Jul 2026 00:00:00 +0300 Thu, 02 Jul 2026 00:00:00 +0300 http://mi.mathnet.ru/eng/vyurm685