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arXiv 0802.2681math.AG
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A_n-归结的Gromov-Witten理论

Gromov-Witten theory of A_n-resolutions

Davesh Maulik

摘要:

本文给出了A_n型可分解曲面奇点的约化Gromov-Witten理论的完全解,对任意亏格,具有任意的下降插入。我们还给出了三重A_n × P^1的T-等变相对Gromov-Witten理论的部分估计,在非简并假设下,给出了该理论的完全解。本文给出的结果允许将这个理论与A_n曲面上点的Hilbert方案的量子上同调进行比较。我们讨论推广到线性Hodge插入和曲面归结的D,E型。作为推论,我们给出了P^1的稳态Gromov-Witten理论的一个新的推导。

英文摘要:

We give a complete solution for the reduced Gromov-Witten theory of resolved surface singularities of type A_n, for any genus, with arbitrary descendent insertions. We also present a partial evaluation of the T-equivariant relative Gromov-Witten theory of the threefold A_n x P^1 which, under a nondegeneracy hypothesis, yields a complete solution for the theory. The results given here allow comparison of this theory with the quantum cohomology of the Hilbert scheme of points on the A_n surfaces. We discuss generalizations to linear Hodge insertions and to surface resolutions of type D,E. As a corollary, we present a new derivation of the stationary Gromov-Witten theory of P^1.

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