论文标题
宫缩，cogogoerators和稳定性弱
Contractions, Cogenerators, and Weak Stability
论文作者
论文摘要
Hilbert空间H及其Cogenerator s的收缩半群t定义了一个代数，即限制代数 - 它决定了弱泊松复发向量的子空间的结构，并为T和S提供了t和s的必要条件，使T和S具有弱稳定的等价。
A contraction semigroup T on a Hilbert space H and its cogenerator S define an algebra, the limit algebra - which determines the structure of the subspace of weakly Poisson recurrent vectors and gives a necessary and sufficient condition for T and S to be weakly stable equivalent.
