A Markov theorem for generalized plat decomposition
A Markov theorem for generalized plat decomposition
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广义平台分解的马尔可夫定理
DOI:
10.2422/2036-2145.201804_012
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发表时间:
2018
期刊:
影响因子:
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通讯作者:
Bovstjan Gabrovvsek
中科院分区:
文献类型:
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作者:
A. Cattabriga;Bovstjan Gabrovvsek
We prove a Markov theorem for tame links in a connected closed orientable 3-manifold $M$ with respect to a plat-like representation. More precisely, given a genus $g$ Heegaard surface $\Sigma_g$ for $M$ we represent each link in $M$ as the plat closure of a braid in the surface braid group $B_{g,2n}=\pi_1(C_{2n}(\Sigma_g))$ and analyze how to translate the equivalence of links in $M$ under ambient isotopy into an algebraic equivalence in $B_{g,2n}$. First, we study the equivalence problem in $\Sigma_g\times [0,1]$, and then, to obtain the equivalence in $M$, we investigate how isotopies corresponding to "sliding" along meridian discs change the braid representative. At the end we provide explicit constructions for Heegaard genus 1 manifolds, i.e. lens spaces and $S^2\times S^1$.
DOI:
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发表时间:
2013
期刊:
影响因子:
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作者:
Satoshi Mayama;et al.;Yasuyuki T. Tanaka;清水理佳
通讯作者:
清水理佳