- 03-93 Sergei Naboko and Roman Romanov
- Spectral Singularities and Asymptotics of Contractive Semigroups. I.
(66K, LaTeX 2e)
Mar 5, 03
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Abstract. The problem of localization of spectral singularities of
dissipative operators in terms of the asymptotic of the
corresponding exponential function is studied. We give a solution
to this problem for the singularities of higher orders in the
frame of the perturbation theory.