A theorem proved by Dobrinskaya in 2006 shows that there is a strong connection between the K(π,1) conjecture for Artin groups and the classifying space of Artin monoids. More recently Ozornova obtained a different proof of Dobrinskaya's theorem based on the application of discrete Morse theory to the standard CW model of the classifying space of an Artin monoid. In Ozornova's work there are hints at some deeper connections between the above-mentioned CW model and the Salvetti complex, a CW complex which arises in the combinatorial study of Artin groups. In this work we show that such connections actually exist, and as a consequence we derive yet another proof of Dobrinskaya's theorem.

Giovanni Paolini (2017). On the classifying space of Artin monoids. COMMUNICATIONS IN ALGEBRA, 45(11), 4740-4757 [10.1080/00927872.2017.1281931].

On the classifying space of Artin monoids

Giovanni Paolini
2017

Abstract

A theorem proved by Dobrinskaya in 2006 shows that there is a strong connection between the K(π,1) conjecture for Artin groups and the classifying space of Artin monoids. More recently Ozornova obtained a different proof of Dobrinskaya's theorem based on the application of discrete Morse theory to the standard CW model of the classifying space of an Artin monoid. In Ozornova's work there are hints at some deeper connections between the above-mentioned CW model and the Salvetti complex, a CW complex which arises in the combinatorial study of Artin groups. In this work we show that such connections actually exist, and as a consequence we derive yet another proof of Dobrinskaya's theorem.
2017
Giovanni Paolini (2017). On the classifying space of Artin monoids. COMMUNICATIONS IN ALGEBRA, 45(11), 4740-4757 [10.1080/00927872.2017.1281931].
Giovanni Paolini
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/943177
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