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On bounded time-dependent perturbations of operator cosine functions

✍ Scribed by Dieter Lutz


Publisher
Springer
Year
1981
Tongue
English
Weight
240 KB
Volume
23
Category
Article
ISSN
0001-9054

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An improvement of a perturbation theory lemma by M. M. Skriganov which gives an upper bound to the shift of eigenvalues is presented along with other related theorems. These results are also compared with Temple's inequality and the generalized Temple's inequality. Applications to spectral theory of