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Almost f-algebras and d-algebras

Published online by Cambridge University Press:  24 October 2008

S. J. Bernau
Affiliation:
Department of Mathematical Sciences, University of Texas at El Paso, El Paso, Texas 79968-0514, U.S.A.
C. B. Huijsmans
Affiliation:
Department of Mathematics, Rijksuniversiteit Leiden, P.O. Box 9512, 2300 RA Leiden, The Netherlands

Extract

In this paper we study the classes of almost f-algebras and d-algebras. Apart from a survey of known properties we present some ‘new’ properties of almost f-algebras and d-algebras and we consider their connection with f-algebras. To be more precise, we show, among other things, in an elementary intrinsic manner, that every Archimedean almost f-algebra is commutative. This result is a considerable improvement upon the fact that every Archimedean f-algebra is commutative. Furthermore, we give a description of the set of nilpotent elements in both an Archimedean d-algebra and an Archimedean almost f-algebra.

Type
Research Article
Copyright
Copyright © Cambridge Philosophical Society 1990

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