The main purpose of this paper is to correct the proof of Theorem 15 of [4], concerned with the stability of the class of quasi-Fredholm operators under finite rank perturbations, and to answer some open questions raised there.
@article{bwmeta1.element.bwnjournal-article-smv130i2p193bwm,
author = {J. Koliha and M. Mbekhta and V. M\"uller and Pak Poon},
title = {Corrigendum and addendum: "On the axiomatic theory of spectrum II"},
journal = {Studia Mathematica},
volume = {129},
year = {1998},
pages = {193-198},
zbl = {0914.47016},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-smv130i2p193bwm}
}
Koliha, J.; Mbekhta, M.; Müller, V.; Poon, Pak. Corrigendum and addendum: "On the axiomatic theory of spectrum II". Studia Mathematica, Tome 129 (1998) pp. 193-198. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-smv130i2p193bwm/
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[00001] [2] V. Kordula, The essential Apostol spectrum and finite dimensional perturbations, Proc. Roy. Irish Acad. Sect. A 96 (1996), 105-110. | Zbl 0880.47005
[00002] [3] V. Kordula and V. Müller, On the axiomatic theory of spectrum, Studia Math. 119 (1996), 109-128. | Zbl 0857.47001
[00003] [4] M. Mbekhta and V. Müller, On the axiomatic theory of spectrum II, ibid., 129-147.