Abstract and Applied Analysis
Volume 2007 (2007), Article ID 34890, 18 pages
doi:10.1155/2007/34890

On Local α-Times Integrated C-Semigroups

Yuan-Chuan Li1 and Sen-Yen Shaw2

1Department of Applied Mathematics, National Chung-Hsing University, Taichung 402, Taiwan
2Graduate School of Engineering, Lunghwa University of Science and Technology, Taoyuan 333, Taiwan

Abstract

This paper presents several characterizations of a local α-times integrated C-semigroup {T(t);0t<τ} by means of functional equation, subgenerator, and well-posedness of an associated abstract Cauchy problem. We also discuss properties concerning the nondegeneracy of T(), the injectivity of C, the closability of subgenerators, the commutativity of T(), and extension of solutions of the associated abstract Cauchy problem.