Volume 13, Issue 4 Fadime Dirik Sevda Yıldız Kamil Demirci Abstract Korovkin theory for double sequences via power series method in modular 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 Fadime Dirik Sevda Yıldız Kamil Demirci Find more articles with the same keywords power series method double sequence abstract Korovkin theorem Find more articles with the same subject classes 40G10 41A36 46E30