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arXiv 0908.0336hep-th
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求解K3纤维上的拓扑弦

Solving the Topological String on K3 Fibrations

Babak Haghighat, Albrecht Klemm

摘要:

本文给出了紧致双参数Calabi-Yau流形的全纯反常方程的解,该流形是加权射影空间中的超曲面。特别是,我们专注于K3-fibrations由于杂种优势II型对偶的拓扑不变量的纤维方向编码在某些模块化的形式。所采用的形式提供了拓扑弦振幅在模空间中处处的全纯展开。

英文摘要:

We present solutions of the holomorphic anomaly equations for compact two-parameter Calabi-Yau manifolds which are hypersurfaces in weighted projective space. In particular we focus on K3-fibrations where due to heterotic type II duality the topological invariants in the fibre direction are encoded in certain modular forms. The formalism employed provides holomorphic expansions of topological string amplitudes everywhere in moduli space.

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