Patterson, Richard F.Savas, Ekrem2025-05-102025-05-1020070893-965910.1016/j.aml.2006.03.0162-s2.0-33751238198https://doi.org/10.1016/j.aml.2006.03.016https://hdl.handle.net/20.500.14720/12516In this paper we shall present a multidimensional invariant Pringsheim core theorem. Conditions on a four-dimensional matrix transformation that will ensure that the transformed Pringsheim core of a bounded double sequence [x] is contained in the double Banach core of [x] shall also be presented. (C) 2006 Published by Elsevier Ltd.eninfo:eu-repo/semantics/openAccessPringsheim CorePringsheim Limit PointP-ConvergentAlmost P-ConvergentBanach CoreArticle204Q1Q1359365WOS:000245379300001