paper

On a joint -partial isometries and a joint -invertible -tuple of operators on a Hilbert space

arXiv:1602.08485

Abstract

The aim of the present paper is, firstly we study the concepts of (m, (q_1, ..., q_d))- partial isometries on a Hilbert space, secondly, we introduce the notion of m- invertibility of tuples of operators as a natural generalization of the m-invertibility in single variable operators.