Communications of the
Korean Mathematical Society CKMS

ISSN(Print) 1225-1763 ISSN(Online) 2234-3024
qr-code QR
Code

Article

HOME ALL ARTICLES View

Commun. Korean Math. Soc. 2018; 33(3): 809-821

Online first article April 6, 2018      Printed July 31, 2018

https://doi.org/10.4134/CKMS.c170245

Copyright © The Korean Mathematical Society.

On weighted and pseudo-weighted spectra of bounded operators

Nassim Athmouni, Hatem Baloudi, Aref Jeribi, Ghazi Kacem

University of Gafsa, University of Gafsa, University of Sfax, University of Sfax

Abstract

Go to

In the present paper, we extend the main results of Jeribi in \cite{1} to weighted and pseudo-weighted spectra of operators in a non-separable Hilbert space $\mathcal{H}$. We investigate the characterization, the stability and some properties of these weighted and pseudo-weighted spectra.

Keywords: Fredholm operators, $\alpha$-Fredholm operator, pseudo-spectrum, weighted spectrum

MSC numbers: 47A53, 47A53, 47A55, 82D75

Article Tools

Stats or Metrics

Share this article on :

Related articles in CKMS

more +