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arXiv 1508.07970math.QA
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与杨-巴克斯特方程的集合论解相联系的微分双代数

A differential bialgebra associated to a set theoretical solution of the Yang-Baxter equation

Marco A. Farinati, Juliana García Galofre

摘要:

对于杨-巴克斯特方程$(X,σ)$的一组理论解,我们定义了一个d.g.双代数$B=B(X,σ)$,包含半群代数$A=k\{X\}/\langle xy=zt : σ(x,y)=(z,t)\rangle$,使得$k\otimes_A B\otimes_Ak$和$\mathrm{Hom}_{A-A}(B,k)$分别是计算在\cite{CJKS}中定义的双quandle同调和上同调的同调和上同调复形,以及在rack-quandle情况下的上同调的其他推广(例如在\cite{CES}中定义的)。这种代数结构使我们能够显示存在的一个结合产品的上同调的biquandles,和一个比较地图与Hochschild(上)同调的代数$A$。

英文摘要:

For a set theoretical solution of the Yang-Baxter equation $(X,σ)$, we define a d.g. bialgebra $B=B(X,σ)$, containing the semigroup algebra $A=k\{X\}/\langle xy=zt : σ(x,y)=(z,t)\rangle$, such that $k\otimes_A B\otimes_Ak$ and $\mathrm{Hom}_{A-A}(B,k)$ are respectively the homology and cohomology complexes computing biquandle homology and cohomology defined in \cite{CJKS} and other generalizations of cohomology of rack-quanlde case (for example defined in \cite{CES}). This algebraic structure allow us to show the existence of an associative product in the cohomology of biquandles, and a comparison map with Hochschild (co)homology of the algebra $A$.

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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