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arXiv 1306.2396math.AGmath.DGmath.GT
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Quandle簇、广义对称空间与$φ$ -空间

Quandle varieties, generalized symmetric spaces and $φ$-spaces

Nobuyoshi Takahashi

摘要:

我们定义一个quandle簇为一个不可约的代数簇$Q$赋予代数定义的quandle操作$\rhd$。它也可以被看作是代数几何中的广义仿射对称空间或正则$s$ -流形的类似物。假设$Q$作为代数簇是正规的,并且内自同构群的作用具有稠密轨道。然后证明了存在一个代数群$G$,使得每个轨道同构于群$G$的量子$(G/H, \rhd_φ)$、$G$的自同构$φ$和$G^φ$的子群$H$.

英文摘要:

We define a quandle variety as an irreducible algebraic variety $Q$ endowed with an algebraically defined quandle operation $\rhd$. It can also be seen as an analogue of a generalized affine symmetric space or a regular $s$-manifold in algebraic geometry. Assume that $Q$ is normal as an algebraic variety and that the action of the inner automorphism group has a dense orbit. Then we show that there is an algebraic group $G$ such that each orbit is isomorphic to the quandle $(G/H, \rhd_φ)$ associated to the group $G$, an automorphism $φ$ of $G$ and a subgroup $H$ of $G^φ$.

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