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arXiv 0902.0512math.QA
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与伪对称辫范畴有关的辫群的商

A quotient of the braid group related to pseudosymmetric braided categories

Florin Panaite, Mihai D. Staic

摘要:

受最近引入的伪对称幺半范畴概念的启发,我们定义伪对称群PS_n为辫群B_n通过关系式σ_iσ_{i+1}^{-1}σ_i=σ_{i+1}σ_i^{-1}σ_{i+1}与1 \leq i \leq n-2的商.证明了PS_n同构于B_n与纯辫群P_n的换位子群[P_n,P_n]的商(相当于说[P_n,P_n]与B_n的由元素[σ_i^2,σ_{i+1}^2]生成的正规子群重合,其中1个\leq i \leq n-2),并且PS_n是线性群。

英文摘要:

Motivated by the recently introduced concept of a pseudosymmetric braided monoidal category, we define the pseudosymmetric group PS_n, as the quotient of the braid group B_n by the relations σ_iσ_{i+1}^{-1}σ_i=σ_{i+1}σ_i^{-1}σ_{i+1}, with 1\leq i\leq n-2. It turns out that PS_n is isomorphic to the quotient of B_n by the commutator subgroup [P_n, P_n] of the pure braid group P_n (which amounts to saying that [P_n, P_n] coincides with the normal subgroup of B_n generated by the elements [σ_i^2, σ_{i+1}^2], with 1\leq i\leq n-2), and that PS_n is a linear group.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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