Sibirskii Zhurnal Vychislitel'noi Matematiki: Latest issue http://www.mathnet.ru/eng/sjvm 2025, Volume 28, Issue Number 4 en-gb Copyright 2026, Tue, 13 Jan 2026 00:00:00 +0300 math-net2026_06@mi-ras.ru tche@mi-ras.ru Sibirskii Zhurnal Vychislitel'noi Matematiki http://www.mathnet.ru/JrnLogos/sjvm/sjvm.gif http://www.mathnet.ru/eng/sjvm Analytical and numerical analysis for a nonlinear fractional differential equations involving the new Caputo--Fabrizio integral S. Lemita, N. Chihi, S. Lemouchi Sib. Zh. Vychisl. Mat., 2025, 28:4, 347--361 http://mi.mathnet.ru/eng/sjvm913 Fri, 09 Jan 2026 00:00:00 +0300 Fri, 09 Jan 2026 00:00:00 +0300 http://mi.mathnet.ru/eng/sjvm913 Optimizing conjugate gradient methods: A study on the parameter $c$ in the GDSHS algorithm W. Merchela, N. Benrabia, H. Guebbai Sib. Zh. Vychisl. Mat., 2025, 28:4, 363--376 http://mi.mathnet.ru/eng/sjvm914 Fri, 09 Jan 2026 00:00:00 +0300 Fri, 09 Jan 2026 00:00:00 +0300 http://mi.mathnet.ru/eng/sjvm914 Finite element method solution of a boundary value problem for an elliptic equation with a Dirac delta function on the right-hand side D. N. Romanov, M. V. Urev Sib. Zh. Vychisl. Mat., 2025, 28:4, 377--389 http://mi.mathnet.ru/eng/sjvm915 Fri, 09 Jan 2026 00:00:00 +0300 Fri, 09 Jan 2026 00:00:00 +0300 http://mi.mathnet.ru/eng/sjvm915 An efficient fractional secant-type method and its application to boundary value problems H. Singh, J. Sharma Sib. Zh. Vychisl. Mat., 2025, 28:4, 391--408 http://mi.mathnet.ru/eng/sjvm916 Fri, 09 Jan 2026 00:00:00 +0300 Fri, 09 Jan 2026 00:00:00 +0300 http://mi.mathnet.ru/eng/sjvm916 A priori estimate of Crank--Nicolson mixed covolume method for parabolic optimal control problems C. Xu Sib. Zh. Vychisl. Mat., 2025, 28:4, 409--426 http://mi.mathnet.ru/eng/sjvm917 Fri, 09 Jan 2026 00:00:00 +0300 Fri, 09 Jan 2026 00:00:00 +0300 http://mi.mathnet.ru/eng/sjvm917 Explicit two-derivative Runge--Kutta methods coupled with Richardson extrapolation M. Eghbaljoo, G. Hojjati, A. Abdi, P. Khakzad Sib. Zh. Vychisl. Mat., 2025, 28:4, 427--442 http://mi.mathnet.ru/eng/sjvm918 Fri, 09 Jan 2026 00:00:00 +0300 Tue, 13 Jan 2026 00:00:00 +0300 http://mi.mathnet.ru/eng/sjvm918