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Idempotent rank in endomorphism monoids of finite independence algebras

Published online by Cambridge University Press:  14 July 2017

R. Gray
R. Gray*
Affiliation:
School of Mathematics, University of Leeds, Leeds LS2 9JT, UK (robertg@maths.leeds.ac.uk)
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Abstract

In 1992, Fountain and Lewin showed that any proper ideal of an endomorphism monoid of a finite independence algebra is generated by idempotents. Here the ranks and idempotent ranks of these ideals are determined. In particular, it is shown that when the algebra has dimension greater than or equal to three the idempotent rank equals the rank.

Type
Research Article
Information
Proceedings of the Royal Society of Edinburgh Section A: Mathematics , Volume 137 , Issue 2 , 2007 , pp. 303 - 331
Copyright
Copyright © Royal Society of Edinburgh 2007

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