Utessov А. and Utessova Г. 2026. ON THE DISCRETIZATION OF THE HEAT EQUATION SOLUTION FROM NIKOL’SKII - BESOV CLASS . Bulletin of Abai KazNPU. Series of Physical and Mathematical sciences. 94, 2 (Jun. 2026), 64–73. DOI:https://doi.org/10.51889/2959-5894.2026.94.2.006.