This paper deals with matrix transformations that preserve the -convexity of sequences. The main result gives the necessary and sufficient conditions for a nonnegative infinite matrix to preserve the -convexity of sequences. Further, we give examples of such matrices for different values of and .
"Nonnegative Infinite Matrices that Preserve -Convexity of Sequences." Abstr. Appl. Anal. 2017 1 - 9, 2017. https://doi.org/10.1155/2017/9167069