[1]
Yessenbayeva, G. et al. 2023. On the function approximation by trigonometric polynomials and the properties of families of function classes over harmonic intervals. Bulletin of the Karaganda University. Mathematics Series. 111, 3 (Sep. 2023), 181–190. DOI:https://doi.org/10.31489/2023m3/181-190.