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序、阿廷-蒂茨群、加尔斯德结构

Ordering, Artin--Tits group, Garside structure

Jean Fromentin, Eddy Godelle

arXiv 2609.04757首次发表:更新:

AI 中文总结

本文研究球形型阿廷群的德霍诺伊结构相关条件,证明其A条件几乎总是成立但B条件很少满足,明确了这类群具备德霍诺伊结构的条件情况。

AI 中文摘要

德霍诺伊结构是用于在加尔斯德群G中得到左序的工具,Arcis与Paris引入了A条件和B条件,两者均满足时可确保G具有德霍诺伊结构,这两个条件描述了对应幺半群中的乘积如何与交替分解相关。本文研究球形型阿廷群G的情况,证明A条件几乎总是成立,但B条件很少满足。

英文摘要

A Dehornoy structure is a tool used to obtain a left order in the Garside group~$G$. Arcis and Paris introduced two conditions, known as Condition~$A$ and Condition~$B$. When they are both satisfied, they ensure that~$G$ possesses a Dehornoy structure. These two conditions describes how the product in the corresponding monoid behaves with an alternating decomposition. Here, we consider the case of a spherical type Artin group~$G$. We prove that Condition A almost always holds, but Condition~$B$ is rarely satisfied.

论文原文

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