A Tauberian theorem for double Cesàro summability method
Summary: We have generalized Littlewood Tauberian theorems for \((C, k, r)\) summability of double sequences by using oscillating behavior and de la Vallée-Poussin mean. Further, the generalization of \((C, r)\) summability from \((C, k, r)\) summability is given as corollaries which were earlier established by the authors.
scientific article; zbMATH DE number 6873303