The Characterization of the Spectrum of a Class of Relations

Hereditary, directed subsets of a group and a semigroup and some of their properties are discussed. A class of relations in terms of the range projections of a partial representation of a discrete group is introduced. It is shown that the spectrum of these relations is homeomorphic to the set of...

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Bibliographic Details
Main Authors: The Characterization of the Spectrum of a Class of Relations, S. Haghkhah
Format: Article
Language:English
Published: Islamic Azad University 2007-06-01
Series:Journal of Mathematical Extension
Online Access:http://ijmex.com/index.php/ijmex/article/view/34