This paper shows some directions of perturbation theory for Lipschitz functions of selfadjoint and normal operators, without giving precise proofs. Some of the ideas discussed are explained informally or for the finite-dimensional case. Several unsolved problems are mentioned.
@article{bwmeta1.element.bwnjournal-article-bcpv30z1p147bwm,
author = {Farforovskaya, Yu.},
title = {Functions of operators and their commutators in perturbation theory},
journal = {Banach Center Publications},
volume = {29},
year = {1994},
pages = {147-159},
zbl = {0804.47016},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-bcpv30z1p147bwm}
}
Farforovskaya, Yu. Functions of operators and their commutators in perturbation theory. Banach Center Publications, Tome 29 (1994) pp. 147-159. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-bcpv30z1p147bwm/
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