λ-Rearrangements Characterization of Pringsheim Limit Points

Richard F. Patterson
2007 International Journal of Mathematics and Mathematical Sciences  
Sufficient conditions are given to assure that a four-dimensional matrixAwill have the property that any double sequencexwith finite P-limit point has- aλ-rearrangementzsuch that each finite P-limit point ofxis a P-limit point ofAz.
doi:10.1155/2007/28205 fatcat:so4ear6yk5ahpd7qlmejyxb2zu