Jurakhonov О. . (2018). 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, 122(1), 70–75. Retrieved from https://bulmathmc.enu.kz/index.php/main/article/view/19