Article ID Journal Published Year Pages File Type
4591409 Journal of Functional Analysis 2012 26 Pages PDF
Abstract

In the paper we generalize the main results presented in Bentkus and Paulauskas (2004) [2] by giving rates of approximation of some semigroups of operators of the order n−α, 0<α⩽1. Also two classes of operators, generalizing sectorial and quasi-sectorial operators, are introduced and their properties are studied.

Related Topics
Physical Sciences and Engineering Mathematics Algebra and Number Theory