transformation semigroups and exact sequences
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abstract
this text carries out some ideas about exact and p− exact sequences of transformationsemigroups. some theorems like the short five lemma (lemma 1.3 and lemma 2.3) are valid here as inexact sequences of r − modules.
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Journal title:
iranian journal of science and technology (sciences)ISSN 1028-6276
volume 29
issue 3 2005
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