A Korovkin-type theorem for double sequences of positive linear operators via power series method
Crossref DOI link: https://doi.org/10.1007/s11117-017-0508-7
Published Online: 2017-06-20
Published Print: 2018-03
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Şahin, Pınar Okçu
Dirik, Fadime
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