The Critical Spectrum of a Strongly Continuous Semigroup
نویسنده
چکیده
For a strongly continuous semigroup (T (t))t≥0 with generator A we introduce its critical spectrum σcrit(T (t)). This yields in an optimal way the spectral mapping theorem σ(T (t)) = e ∪ σcrit(T (t)) and improves classical stability results.
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تاریخ انتشار 1998