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Some extensions of a class of pseudo symmetric numerical semigroups. (English) Zbl 1276.20065

Summary: We give some results about some extensions of a pseudo symmetric numerical semigroup in the form of \(S=\langle 3,3+s,3+2s\rangle\) for \(s\in\mathbb Z^+\) and \(3\nmid s\).

MSC:

20M14 Commutative semigroups
20M05 Free semigroups, generators and relations, word problems
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