The joint essential numerical range, compact perturbations, and the Olsen problem

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985840%3A_____%2F10%3A00342843" target="_blank" >RIV/67985840:_____/10:00342843 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

The joint essential numerical range, compact perturbations, and the Olsen problem

Original language description

Let T be an n-tuple of bounded linear operators on a complex Hilbert space H. Then there exists an n-tuple K of compact operators such that the essential numerical range of T equals to the closure of the numerical range of T+K. This generalices the corresponding resoult for n=1. The result is also applied to the Olsen problem.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BA - General mathematics

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2010

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Studia mathematica

ISSN

0039-3223

e-ISSN

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Volume of the periodical

197

Issue of the periodical within the volume

3

Country of publishing house

PL - POLAND

Number of pages

16

Pages from-to

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UT code for WoS article

000277765100005

EID of the result in the Scopus database

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