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A Lagrangian filling for every cluster seed

Symplectic Geometry 2024-08-09 v3 Combinatorics Geometric Topology Representation Theory

Abstract

We show that each cluster seed in the augmentation variety is inhabited by an embedded exact Lagrangian filling. This resolves the matter of surjectivity of the map from Lagrangian fillings to cluster seeds. The main new technique to produce these Lagrangian fillings is the construction and study of a quiver with potential associated to curve configurations. We prove that its deformation space is trivial and show how to use it to manipulate Lagrangian fillings with L\mathbb{L}-compressing systems via Lagrangian disk surgeries.

Keywords

Cite

@article{arxiv.2308.00043,
  title  = {A Lagrangian filling for every cluster seed},
  author = {Roger Casals and Honghao Gao},
  journal= {arXiv preprint arXiv:2308.00043},
  year   = {2024}
}

Comments

45 pages, 40 figures