# COUNTING DISTINCT FUZZY SUBGROUPS OF SOME RANK-3 ABELIAN GROUPS

Document Type : Research Paper

Authors

Department of Mathematics, University of Fort Hare, ALICE, 5700, South Africa

Abstract

In this paper we classify fuzzy subgroups of a rank-3 abelian group \$G = \mathbb{Z}_{p^n} + \mathbb{Z}_p + \mathbb{Z}_p\$ for any fixed prime \$p\$ and any positive integer \$n\$, using a natural equivalence relation given in \cite{mur:01}. We present and prove explicit polynomial formulae for the number of (i) subgroups, (ii) maximal chains of subgroups, (iii) distinct fuzzy subgroups, (iv) non-isomorphic maximal chains of subgroups and (v) classes of isomorphic fuzzy subgroups of \$G\$. Illustrative examples are provided.

Keywords

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