Crossing-changeable braids from chromatic configuration spaces  

作　　者：Hao Li Zhi Lv 

机构地区：[1]School of Mathematical Sciences,Fudan University,Shanghai,200433,China

出　　处：《Science China Mathematics》2021年第9期2077-2090,共14页中国科学：数学（英文版）

基　　金：supported by National Natural Science Foundation of China(Grant No.11971112)。

摘　　要：Motivated by the work in Li et al.(2019),this paper deals with the theory of the braids from chromatic configuration spaces.These kinds of braids possess the property that some strings of each braid may intersect together and can also be untangled,so they are quite different from the ordinary braids in the sense of Artin(1925).This enriches and extends the theory of ordinary braids.

关 键 词：crossing-changeable braid chromatic configuration space extended fundamental group 

分 类 号：O157.5[理学—数学]