IJPAM: Volume 86, No. 4 (2013)

SIMPLE PROOFS DETERMINING ALL NONISOMORPHIC
SEMIGROUPS OF ORDER 3 WITH TWO IDEMPOTENTS

Somchit Chotchaisthit
Department of Mathematics
Faculty of Science
Khon Kaen University
Khon Kaen, 40002, THAILAND


Abstract. In this paper we use only elementary ideas to show that there are 9 nonisomorphic semigroups of order 3 with two idempotents.

Received: April 29, 2013

AMS Subject Classification: 20M10

Key Words and Phrases: finite semigroups

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DOI: 10.12732/ijpam.v86i4.10 How to cite this paper?
Source: International Journal of Pure and Applied Mathematics
ISSN printed version: 1311-8080
ISSN on-line version: 1314-3395
Year: 2013
Volume: 86
Issue: 4