Linear maps preserving essentially numerical range and essentially unitary operator

zbMath1354.47025MaRDI QIDQ326881

Samir Kabbaj, Abdellatif Chahbi

Publication date: 12 October 2016

Published in: Asia Pacific Journal of Mathematics (Search for Journal in Brave)

Full work available at URL: http://apjm.apacific.org/PDFs/1-2-116-126.pdf

zbMATH Keywords

essential numerical rangelinear preserversCalkin algebraessential numerical radiusessential unitary operator

Mathematics Subject Classification ID

Spectrum, resolvent (47A10) (Semi-) Fredholm operators; index theories (47A53) Transformers, preservers (linear operators on spaces of linear operators) (47B49)

Cites Work

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• Some applications of differential subordination

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