Multidimensional matrix characterizations of the Banach and Pringsheim core

نویسندگان

  • Richard F. Patterson
  • Ekrem Savas
چکیده

In 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

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عنوان ژورنال:
  • Appl. Math. Lett.

دوره 20  شماره 

صفحات  -

تاریخ انتشار 2007