Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8897670 | Linear Algebra and its Applications | 2018 | 23 Pages |
Abstract
In this paper, we investigate the question of when the equations AâsAs=(AâA)s, sâS, where S is a finite set of positive integers, imply the quasinormality or normality of A. In particular, it is proved that if S={p,m,m+p,n,n+p}, where p⩾1 and 2⩽m
Keywords
Related Topics
Physical Sciences and Engineering
Mathematics
Algebra and Number Theory
Authors
PaweÅ Pietrzycki,