A generalized variety problem |
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Authors: | Churchill Genevieve |
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Affiliation: | 1.Brisbane, QLD, 4500, Australia ; |
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Abstract: | Semigroup Forum - Let $${mathscr {C}}! om $$ denote the variety of all commutative semigroups. For $$nge 1$$ let $${{mathscr {N}}! il }_n$$ (respectively $${mathscr {N}}_n$$ ) denote the... |
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