ON STRONGLY CONDENSING OPERATORS AT INFINITY

The paper introduces the notion of an operator strongly condensing at infinity, which is a natural variation of the notion of a locally strongly condensing operator at a finite point (introduced by the author earlier). It turns out that if such an operator is asymptotically linear, then its asymptot...

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Main Author: N. A. Erzakova
Format: Article
Language:Russian
Published: Moscow State Technical University of Civil Aviation 2016-11-01
Series:Научный вестник МГТУ ГА
Subjects:
Online Access:https://avia.mstuca.ru/jour/article/view/240
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author N. A. Erzakova
author_facet N. A. Erzakova
author_sort N. A. Erzakova
collection DOAJ
description The paper introduces the notion of an operator strongly condensing at infinity, which is a natural variation of the notion of a locally strongly condensing operator at a finite point (introduced by the author earlier). It turns out that if such an operator is asymptotically linear, then its asymptotic derivative is compact. In particular, this notion allows to build examples of operators that are neither compact, nor condensing, not even -bounded. Such operators form a linear space. Some applications of the notion to the theory of bifurcation points are discussed.
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institution Kabale University
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publisher Moscow State Technical University of Civil Aviation
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series Научный вестник МГТУ ГА
spelling doaj-art-95e6abb0acfe4f12906c223e542f267d2025-08-20T03:35:43ZrusMoscow State Technical University of Civil AviationНаучный вестник МГТУ ГА2079-06192542-01192016-11-010207110117240ON STRONGLY CONDENSING OPERATORS AT INFINITYN. A. Erzakova0МГТУ ГАThe paper introduces the notion of an operator strongly condensing at infinity, which is a natural variation of the notion of a locally strongly condensing operator at a finite point (introduced by the author earlier). It turns out that if such an operator is asymptotically linear, then its asymptotic derivative is compact. In particular, this notion allows to build examples of operators that are neither compact, nor condensing, not even -bounded. Such operators form a linear space. Some applications of the notion to the theory of bifurcation points are discussed.https://avia.mstuca.ru/jour/article/view/240measure of noncompactnesscondensing operatorlocally strongly condensing operatorasymptotically linear operatorasymptotic derivativebifurcation point
spellingShingle N. A. Erzakova
ON STRONGLY CONDENSING OPERATORS AT INFINITY
Научный вестник МГТУ ГА
measure of noncompactness
condensing operator
locally strongly condensing operator
asymptotically linear operator
asymptotic derivative
bifurcation point
title ON STRONGLY CONDENSING OPERATORS AT INFINITY
title_full ON STRONGLY CONDENSING OPERATORS AT INFINITY
title_fullStr ON STRONGLY CONDENSING OPERATORS AT INFINITY
title_full_unstemmed ON STRONGLY CONDENSING OPERATORS AT INFINITY
title_short ON STRONGLY CONDENSING OPERATORS AT INFINITY
title_sort on strongly condensing operators at infinity
topic measure of noncompactness
condensing operator
locally strongly condensing operator
asymptotically linear operator
asymptotic derivative
bifurcation point
url https://avia.mstuca.ru/jour/article/view/240
work_keys_str_mv AT naerzakova onstronglycondensingoperatorsatinfinity