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Evolution of the complex spectrum of a periodic operator

✍ Scribed by M. A. Pankratov


Publisher
SP MAIK Nauka/Interperiodica
Year
1992
Tongue
English
Weight
440 KB
Volume
51
Category
Article
ISSN
0001-4346

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We study the time \(T\)-map \(U\) which maps initial data \(\left(u_{0}, u_{1}\right)\) to the solution and its derivative \(\left(u(T), u_{d}(T)\right)\) of the homogeneous wave equation in a domain with time \(T\)-periodic boundary. The spectrum of \(U\) and the type of the spectrum are completely