English

Scattering diagrams from asymptotic analysis on Maurer-Cartan equations

Algebraic Geometry 2022-02-23 v2 Mathematical Physics math.MP Symplectic Geometry

Abstract

Let Xˇ0\check{X}_0 be a semi-flat Calabi-Yau manifold equipped with a Lagrangian torus fibration pˇ:Xˇ0B0\check{p}:\check{X}_0 \rightarrow B_0. We investigate the asymptotic behavior of Maurer-Cartan solutions of the Kodaira-Spencer deformation theory on Xˇ0\check{X}_0 by expanding them into Fourier series along fibres of pˇ\check{p} over a contractible open subset UB0U\subset B_0, following a program set forth by Fukaya in 2005. We prove that semi-classical limits (i.e. leading order terms in asymptotic expansions) of the Fourier modes of a specific class of Maurer-Cartan solutions naturally give rise to consistent scattering diagrams, which are tropical combinatorial objects that have played a crucial role in works of Kontsevich-Soibelman and Gross-Siebert on the reconstruction problem in mirror symmetry.

Keywords

Cite

@article{arxiv.1807.08145,
  title  = {Scattering diagrams from asymptotic analysis on Maurer-Cartan equations},
  author = {Kwokwai Chan and Naichung Conan Leung and Ziming Nikolas Ma},
  journal= {arXiv preprint arXiv:1807.08145},
  year   = {2022}
}

Comments

54 pages, 17 figures; v2: significantly shortened because the preliminary materials (Sections 2 and 3) have been made much more concise (see the survey article arXiv:1811.09042 for more background) and Section 6, the main result of which basically follows directly from previous sections, has been removed (and will be appear elsewhere); all the main results and their proofs remain unchanged