Homotopy invariants of Gauss phrases
Homotopy invariants of Gauss phrases
复制标题
高斯短语的同伦不变量
DOI:
10.1512/iumj.2010.59.3850
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发表时间:
2008
期刊:
影响因子:
--
通讯作者:
Andrew Gibson
中科院分区:
文献类型:
--
作者:
Andrew Gibson
Equivalence relations can be defined on Gauss phrases using combinatorial moves. In this paper we consider two closely related equivalence relations on Gauss phrases, homotopy and open homotopy. In particular, in each case, we define a new invariant and determine the values that it can attain.