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arXiv 2201.05100math.AGmath.AT
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稳定映射的Kontsevich空间的表示稳定性

Representation stability for the Kontsevich space of stable maps

Philip Tosteson

摘要:

对于固定的代数簇$X$,曲线类$α\in N_1(X)$和亏格$g \in \mathbb N$,我们考虑由稳定映射的Kontsevich空间到$X$的同调得到的$S_n$表示序列,$\bar M_{g,n}(X,α)$ .利用有限集和满射的范畴,我们证明了一个表示稳定性定理,该定理控制了$n$足够大的表示序列的行为。

英文摘要:

For a fixed algebraic variety $X$, curve class $α\in N_1(X)$, and genus $g \in \mathbb N$, we consider the sequence of $S_n$ representations obtained from the homology of the Kontsevich space of stable maps to $X$, $\bar M_{g,n}(X,α)$. Using the category of finite sets and surjections, we prove a representation stability theorem that governs the behavior of this sequence of representations for $n$ sufficiently large.

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