Compactness and norm continuity of the difference of two cosine functions

DOI10.11650/twjm/1500407578zbMath1070.47035OpenAlexW4238304843MaRDI QIDQ1428959

Miao Li, Serguei Piskarev, Bao-Zhu Guo

Publication date: 29 March 2004

Published in: Taiwanese Journal of Mathematics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.11650/twjm/1500407578

zbMATH Keywords

compactness\(C_0\)-semigroupsnorm continuitycosine functionsdifference of cosine functionsperturbation of generators

Mathematics Subject Classification ID

Groups and semigroups of linear operators (47D03) Operator sine and cosine functions and higher-order Cauchy problems (47D09)

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