Stability of Schechter essential spectrum of \(2 \times 2\) block operator matrix by means of measure of non strict singularity and application
type: Item
instance of: scholarly article
title: Stability of Schechter essential spectrum of \(2 \times 2\) block operator matrix by means of measure of non strict singularity and application
author: Nedra Moalla
author: Ines Walha
published in: Indagationes Mathematicae. New Series
publication date: 2017-11-14T00:00:00Z
Mathematics Subject Classification ID: 47A08
Mathematics Subject Classification ID: 47A10
zbMATH DE Number: 6806712
zbMATH Keywords: matrix operator
zbMATH Keywords: measure of non compactness
zbMATH Keywords: measure of non strict singularity
zbMATH Keywords: Schechter essential spectrum
zbMATH Keywords: weak compactness
zbMATH Keywords: relatively weakly compact
MaRDI profile type: Publication
full work available at URL: j.indag.2017.09.010
OpenAlex ID: W2764056070
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DOI: 10.1016/J.INDAG.2017.09.010
description: scientific article; zbMATH DE number 6806712