English

$L_\infty$-Kuranishi spaces and the moduli space of pseudoholomorphic maps

Symplectic Geometry 2025-11-10 v1

Abstract

We introduce LL_{\infty}-Kuranishi spaces by associating, to each chart, L[1]L_{\infty}[1]-algebras defined on open neighborhoods of the zero points of the Kuranishi section. We show that these objects collectively form a category, which naturally embeds the category of smooth manifolds. Certain notions in \cite{FOOO1} are modified to achieve desired categorical structures; for instance, the tangent bundle condition is interpreted as a quasi-isomorphism condition for the LL_{\infty}-structures. In this process, the originally strict and rigid cocycle condition for coordinate changes is replaced by more flexible homotopy-theoretic compatibilities. To this end, a model of higher homotopy theory for L[1]L_{\infty}[1]-morphisms is proposed. Moreover, the moduli space of pseudoholomorphic disks with Lagrangian boundary condition is shown to serve as an example of LL_{\infty}-Kuranishi spaces, provided that a Whitney stratification with a compatible system of tubular neighborhoods exists on each chart. Finally, the forgetful and evaluation maps for the moduli space are lifted to morphisms between LL_{\infty}-Kuranishi spaces.

Keywords

Cite

@article{arxiv.2511.05206,
  title  = {$L_\infty$-Kuranishi spaces and the moduli space of pseudoholomorphic maps},
  author = {Taesu Kim},
  journal= {arXiv preprint arXiv:2511.05206},
  year   = {2025}
}