Abstract
The $\a$-times integrated semigroups, $\a\in\R^-=(-\infty,0]$, are introduced and analyzed as extensions of $0$-integrated semigroups.
Keywords: Integrated semigroups.
MSC: 46F99
Pages: 153--162
Volume 49 , Issue 3$-$4 , 1997
Published by Društvo matematičara Srbije Kneza Mihaila 35/IV, P.O.B. 355, 11000 Belgrade, Serbia E-mail: drustvomatematicara(at)yahoo.com Fax: +381 11 3036 819 ISSN 2406-0682 (Online), ISSN 0025–5165 (Print)