On the defect spectrum of an extension of a Banach space operator
Czechoslovak Mathematical Journal (1998)
- Volume: 48, Issue: 4, page 609-616
- ISSN: 0011-4642
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topKordula, Vladimír. "On the defect spectrum of an extension of a Banach space operator." Czechoslovak Mathematical Journal 48.4 (1998): 609-616. <http://eudml.org/doc/30441>.
@article{Kordula1998,
abstract = {Let $T$ be an operator acting on a Banach space $X$. We show that between extensions of $T$ to some Banach space $Y\supset X$ which do not increase the defect spectrum (or the spectrum) it is possible to find an extension with the minimal possible defect spectrum.},
author = {Kordula, Vladimír},
journal = {Czechoslovak Mathematical Journal},
keywords = {extensions of operators; approximate point spectrum; defect spectrum},
language = {eng},
number = {4},
pages = {609-616},
publisher = {Institute of Mathematics, Academy of Sciences of the Czech Republic},
title = {On the defect spectrum of an extension of a Banach space operator},
url = {http://eudml.org/doc/30441},
volume = {48},
year = {1998},
}
TY - JOUR
AU - Kordula, Vladimír
TI - On the defect spectrum of an extension of a Banach space operator
JO - Czechoslovak Mathematical Journal
PY - 1998
PB - Institute of Mathematics, Academy of Sciences of the Czech Republic
VL - 48
IS - 4
SP - 609
EP - 616
AB - Let $T$ be an operator acting on a Banach space $X$. We show that between extensions of $T$ to some Banach space $Y\supset X$ which do not increase the defect spectrum (or the spectrum) it is possible to find an extension with the minimal possible defect spectrum.
LA - eng
KW - extensions of operators; approximate point spectrum; defect spectrum
UR - http://eudml.org/doc/30441
ER -
References
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