Volume 27, Issue 1 Nika Areshidze George Tephnadze Approximation by Nörlund means with respect to Walsh system in Lebesgue spaces Downloads Abstract PDF Full article PDF DOI { copied = true; setTimeout(() => copied = false, 2000) })" :aria-label="copied ? 'DOI copied' : 'Copy DOI'" :title="copied ? 'Copied' : 'Copy DOI'" > Find all available articles from these authors Nika Areshidze George Tephnadze Find more articles with the same keywords Walsh group Walsh system Fejér means Nörlund means approximation inequalities Find more articles with the same subject classes 42C10 42B30