counting distinct fuzzy subgroups of some rank-3 abelian groups

نویسندگان

isaac k. appiah

department of mathematics, university of fort hare, alice, 5700, south africa b. b. makamba

department of mathematics, university of fort hare, alice, 5700, south africa

چکیده

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.

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عنوان ژورنال:
iranian journal of fuzzy systems

جلد ۱۴، شماره ۱، صفحات ۱۶۳-۱۸۱

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