The Center Of A Generalized Effect Algebra

Autor: David J. Foulis, S. Pulmannová
Rok vydání: 2014
Předmět:
Zdroj: Demonstratio Mathematica, Vol 47, Iss 1, Pp 1-21 (2014)
ISSN: 2391-4661
0420-1213
Popis: In this article, we study the center of a generalized effect algebra (GEA), relate it to the exocenter, and in case the GEA is centrally orthocomplete (a COGEA), relate it to the exocentral cover system. Our main results are that the center of a COGEA is a complete boolean algebra and that a COGEA decomposes uniquely as the direct sum of an effect algebra (EA) that contains the center of the COGEA and a complementary direct summand in which no nonzero direct summand is an EA.
Databáze: OpenAIRE