Counting the number of fuzzy subgroups of an abelian group of order pnqm
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2016, Fuzzy Sets and SystemsCitation Excerpt :Note that in all our papers mentioned above the fuzzy (normal) subgroups of finite groups have been classified up to the same natural equivalence relation ∼ defined on the fuzzy (normal) subgroup lattices. This extends the equivalence relation used in Murali's papers [7–11] and gives a powerful connection between the fuzzy subgroups and certain chains of subgroups of finite groups. Recall here the technique initiated in [2] (see also [28]) to derive fuzzy theorems from their crisp versions.
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