Article ID Journal Published Year Pages File Type
4591866 Journal of Functional Analysis 2008 9 Pages PDF
Abstract

We revise the notion of the quasi-sectorial contractions. Our main theorem establishes a relation between semigroups of quasi-sectorial contractions and a class of m-sectorial generators. We discuss a relevance of this kind of contractions to the theory of operator-norm approximations of strongly continuous semigroups.

Related Topics
Physical Sciences and Engineering Mathematics Algebra and Number Theory