TRANSFORMATION SEMIGROUPS AND EXACT SEQUENCES

Document Type : Regular Paper

Author

Department of Mathematics, Faculty of Science, University of Tehran, Enghelab Ave., Tehran, I. R. of Iran

Abstract

This text carries out some ideas about exact and P− exact sequences of transformation
semigroups. Some theorems like the short five lemma (Lemma 1.3 and Lemma 2.3) are valid here as in
exact sequences of R − modules.

Keywords

Iranian Journal of Science
Volume 29, Issue 3 - Serial Number 3
November and December 2005
Pages 481-495

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