1

Weyl’s Theorem and Perturbations

Year:
2005
Language:
english
File:
PDF, 231 KB
english, 2005
3

Nonlinear maps preserving Drazin invertible operators of bounded index

Year:
2019
Language:
english
File:
PDF, 359 KB
english, 2019
4

On additive maps preserving certain semi-Fredholm subsets

Year:
2013
Language:
english
File:
PDF, 120 KB
english, 2013
7

Linear Preservers of Quadratic Operators

Year:
2016
Language:
english
File:
PDF, 503 KB
english, 2016
12

The perturbation class of algebraic operators and applications

Year:
2018
Language:
english
File:
PDF, 330 KB
english, 2018
13

A Generalization of Strongly Preserver Problems of Drazin Invertibility

Year:
2018
Language:
english
File:
PDF, 420 KB
english, 2018
14

Non-linear maps preserving singular algebraic operators

Year:
2016
Language:
english
File:
PDF, 217 KB
english, 2016