A note on roots and powers of partial isometries

被引：8

作者：

Ezzahraoui, H. ^{[1
]}

Mbekhta, M. ^{[2
]}

Salhi, A. ^{[1
]}

Zerouali, E. H. ^{[1
]}

机构：

[1] Mohamed V Univ, Fac Sci, BP 1014, Rabat, Morocco

[2] Univ Lille 1, UFR Math, CNRS, UMR 8524, F-59655 Villeneuve Dascq, France

来源：

ARCHIV DER MATHEMATIK | 2018年 / 110卷 / 03期

关键词：

Hilbert space; Powers and roots of a linear operator; Structure theorems of partial isometries; OPERATORS;

D O I：

10.1007/s00013-017-1116-2

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

Let T be a bounded operator and let be an integer. We study in this paper the following question: T is a partial isometry implies that is a partial isometry and conversely.

引用

页码：251 / 259

页数：9

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