JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, cilt.208, sa.2, ss.520-527, 1997 (SCI-Expanded, Scopus)
Based on the recently introduced concept of a statistical cluster point, a definition is given for the statistical core of a complex number sequence which is analogous to the Knopp core. The theorems proved here are statistical analogues of theorems about the Knopp core concerning its containment or invariance under a matrix transformation. (C) 1997 Academic Press.