Basic questions on Artin-Tits groups
Basic questions on Artin-Tits groups
复制标题
关于 Artin-Tits 群体的基本问题
DOI:
10.1007/978-88-7642-431-1_13
复制
发表时间:
2011
期刊:
影响因子:
--
通讯作者:
L. Paris
中科院分区:
文献类型:
--
作者:
Eddy Godelle;L. Paris
This paper is a short survey on four basic questions on Artin-Tits groups: the torsion, the center, the word problem, and the cohomology(K(π, 1) problem). It is also an opportunity to prove three new results concerning these questions: (1) if all free of infinity Artin-Tits groups are torsion free, then all Artin-Tits groups will be torsion free; (2) If all free of infinity irreducible non-spherical type Artin-Tits groups have a trivial center then all irreducible non-spherical type Artin-Tits groups will have a trivial center; (3) if all free of infinity Artin-Tits groups have solutions to the word problem, then all Artin-Tits groups will have solutions to the word problem. Recall that an Artin-Tits group is free of infinity if its Coxeter graph has no edge labeled by ∞.