Approximation by matrix means on hexagonal domains in the generalized Hölder metric


Hatice Aslan




In this paper the degree of approximation of the function f , which is periodic with respect to the hexagon lattice by matrix means T (A) n (f) of its hexagonal Fourier series in the generalized Hölder metric, where A is a lower triangular infinite matrix of nonnegative real numbers with nonincreasing row is estimated.