KYDYRAKYN, M.; Birgebaev А. FEATURES OF PROBLEM SOLVING IN FUNCTIONAL ANALYSIS. Bulletin of Abai KazNPU. Series of Physical and Mathematical sciences, Almaty, Kazakhstan, v. 95, n. 3, p. 117–127, 2026. DOI: 10.51889/2959-5894.2026.95.3.010. Disponível em: https://bulletin-phmath.kaznpu.kz/index.php/phmath/article/view/2797. Acesso em: 28 oct. 2026.