good semigroup
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Author(s):  
Marco D’Anna ◽  
Lorenzo Guerrieri ◽  
Vincenzo Micale
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2018 ◽  
Vol 17 (10) ◽  
pp. 1850182 ◽  
Author(s):  
Giuseppe Zito

In this paper, we study the property of the Arf good subsemigroups of [Formula: see text], with [Formula: see text]. We give a way to compute all the Arf semigroups with a given collection of multiplicity branches. We also deal with the problem of determining the Arf closure of a set of vectors and of a good semigroup, extending the concept of characters of an Arf numerical semigroup to Arf good semigroups.


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