


Paper's Title:
To a Banach *algebra in a Semipartial Dynamical System
Author(s):
Bahman Tabatabaie Shourijeh and Seyed Mostafa Zebarjad
Department of Mathematics,
College of Sciences,
Shiraz University, Shiraz 71454,
Iran.
Email:
tabataba@math.susc.ac.ir
zebarjad@mail.yu.ac.ir
URL:
http://research.shirazu.ac.ir/faculty/More.asp?ID=207
Abstract:
By a partial dynamical system, we mean a triple containing a C*algebra A, a discrete group G and a partial action of G on A. There are two C*algebras associated to a given partial dynamical system. These are nothing but the certain C*completions of a Banach *algebra. In constructing such a Banach *algebra, usually, a tedious limit process is used to apply. In this paper, we prove some theorems in this context without any limit process.
Paper's Title:
Partial Semigroup Algebras Associated to Partial Action
Author(s):
Bahman Tabatabaie Shourijeh and Sahar Moayeri Rahni
Department of Mathematics,
College of Sciences, Shiraz University,
Shiraz, 71454,
Iran.
Email:
tabataba@math.susc.ac.ir
Department of Mathematics,
College of Sciences, Shiraz University,
Shiraz, 71454,
Iran.
Email: smoayeri@shirazu.ac.ir
Abstract:
For a given inverse semigroup S, we introduce the notion of algebraic crossed product by using a given partial action of S, and we will prove that under some condition it is associative. Also we will introduce the concept of partial semigroup algebra K_{Par}(S), and we show that the suitable quotient of K_{Par}(S) is a kind of crossed product.
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