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Coherent presentations of a class of monoids admitting a Garside family

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 نشر من قبل Yves Guiraud
 تاريخ النشر 2021
  مجال البحث
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This paper shows how to construct coherent presentations of a class of monoids, including left-cancellative noetherian monoids containing no nontrivial invertible element and admitting a Garside family. Thereby, it resolves the question of finding a unifying generalisation of the following two distinct extensions of Delignes original construction of coherent presentations for spherical Artin-Tits monoids: to general Artin-Tits monoids, and to Garside monoids. The result is applied to a dual braid monoid, and to some monoids which are neither Artin-Tits nor Garside. For the Artin-Tits monoid of type $widetilde{A}_{2}$, a finite coherent presentation is given, having a finite Garside family as a generating set.



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