APPLIED MATHEMATICS AND COMPUTATION, vol.235, pp.105-109, 2014 (Journal Indexed in SCI)
Article / Article
Title of Journal :
APPLIED MATHEMATICS AND COMPUTATION
We prove that a regular nonnegative doubly infinite matrix preserves all monotonicities of double sequences if and only if it is a conservative double Haudorff matrix with all nonnegative entries. (C) 2014 Elsevier Inc. All rights reserved.