Braid group actions on matrix factorizations

Braid group actions on matrix factorizations
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矩阵分解上的辫子群动作

DOI:
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发表时间:
2015
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通讯作者:
T. Kanstrup
T. Kanstrup
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作者:
S. Arkhipov;T. Kanstrup

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设$X$是一个光滑方案,在特征为零的代数闭域$k$上有一个约化代数群$G$的作用。我们构造了扩展仿射辫子群在Grothendieck簇$T^*X$上的矩阵分解的$G$等变绝对派生范畴上的作用,其位势由Grothendieck-Springer分解的解乘以与自然对组成的矩映射所给出.
Let $X$ be a smooth scheme with an action of a reductive algebraic group $G$ over an algebraically closed field $k$ of characteristic zero. We construct an action of the extended affine Braid group on the $G$-equivariant absolute derived category of matrix factorizations on the Grothendieck variety times $T^*X$ with potential given by the Grothendieck-Springer resolution times the moment map composed with the natural pairing.