Jurakhonov О. . О.А. Jurakhonov The exact values of the upper bounds for approximation in the mean of some classes of Ьivariate functions bу triangular Fourier-Hermite sums . Bulletin of L.N. Gumilyov Eurasian National University. Mathematics, computer science, mechanics series, [S. l.], v. 122, n. 1, p. 70–75, 2018. Disponível em: https://bulmathmc.enu.kz/index.php/main/article/view/19. Acesso em: 24 nov. 2024.