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arXiv 1109.0972math.SGmath-phmath.AGmath.MP
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映射环面的辛域论与局部辛域论中的拓扑递归关系

Topological recursion relations in the symplectic field theory of mapping tori and local symplectic field theory

Oliver Fabert, Paolo Rossi

摘要:

基于我们上一篇联合论文中关于有理SFT模空间中后代的局部化结果,我们证明了辛映射环面的SFT和局部SFT中哈密顿量的拓扑递归关系.结合SFT中的Escherton方程,我们证明了一个从主元到子元的重构定理。虽然事实证明(与Gromov-Witten理论和非等变圆柱接触同调相反)后代哈密顿量不能从没有后代的哈密顿量单独计算,但我们得到唯一需要的额外信息是第一个后代哈密顿量,它计算与辛纤维相切的全纯曲线。从局部SFT中的显式计算可知,后代SFT不变量通常比主SFT不变量包含更多的几何信息。

英文摘要:

Based on the localization result for descendants in rational SFT moduli spaces from our last joint paper, we prove topological recursion relations for the Hamiltonian in SFT of symplectic mapping tori and in local SFT. Combined with the dilaton equation in SFT, we use them to prove a reconstruction theorem for descendants from primaries. While it turns out that (in contrast to Gromov-Witten theory and non-equivariant cylindrical contact homology) the descendant Hamiltonian cannot be computed from the Hamiltonian without descendants alone, we get that the only additional piece of information needed is the first descendant Hamiltonian, which counts holomorphic curves tangent to the symplectic fibre. As already known from the explicit computations in local SFT, it follows that the descendant SFT invariants in general contain more geometric information than the primary SFT invariants.

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