Mathematical Inequalities & Applications · Volume 27, Issue 1 Approximation by Nörlund means with respect to Walsh system in Lebesgue spaces 27-10 Pages 137-147 DOI 10.7153/mia-2024-27-10 Downloads Short PDF Full PDF PNG Authors Nika Areshidze George Tephnadze Keywords Walsh group Walsh system Fejér means Nörlund means approximation inequalities Subject classes 42C10 42B30