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Characters of tangent spaces at torus fixed points and 3d-mirror symmetry
Letters in Mathematical Physics ( IF 1.3 ) Pub Date : 2020-05-29 , DOI: 10.1007/s11005-020-01292-y
Andrey Smirnov , Hunter Dinkins

Let $X$ be a Nakajima quiver variety and $X'$ its $3d$-mirror. We consider the action of the Picard torus $\mathsf{K}=\mathrm{Pic}(X)\otimes \mathbb{C}^{\times}$ on $X'$. Assuming that $(X')^{\mathsf{K}}$ is finite, we propose a formula for the $\mathsf{K}$-character of the tangent spaces at the fixed points in terms of certain enumerative invariants of $X$ known as vertex functions.

中文翻译:

圆环不动点切空间的特征和3d镜对称性

让 $X$ 成为 Nakajima 箭袋品种,而 $X'$ 是它的 $3d$-mirror。我们考虑皮卡德圆环 $\mathsf{K}=\mathrm{Pic}(X)\otimes \mathbb{C}^{\times}$ 对 $X'$ 的作用。假设 $(X')^{\mathsf{K}}$ 是有限的,我们根据 $ 的某些枚举不变量,为不动点处的切空间的 $\mathsf{K}$ 字符提出了一个公式X$ 称为顶点函数。
更新日期:2020-05-29
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