Symplectomorphisms of some Weinstein 4-manifolds

Fuente: arXiv
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Main Authors: Hacking, Paul, Keating, Ailsa
Format: Preprint
Published: 2021
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author Hacking, Paul
Keating, Ailsa
author_facet Hacking, Paul
Keating, Ailsa
contents Let M be a Weinstein four-manifold mirror to Y\D for (Y,D) a log Calabi--Yau surface; intuitively, this is typically the Milnor fibre of a smoothing of a cusp singularity. We introduce two families of symplectomorphisms of M: Lagrangian translations, which we prove are mirror to tensors with line bundles; and nodal slide recombinations, which we prove are mirror to automorphisms of (Y,D). The proof uses a detailed compatibility between the homological and SYZ view-points on mirror symmetry. Together with spherical twists, these symplectomorphisms are expected to generate all autoequivalences of the wrapped Fukaya category of M which are compactly supported in a categorical sense. A range of applications is given.
format Preprint
id arxiv_https___arxiv_org_abs_2112_06797
institution arXiv
publishDate 2021
record_format arxiv
spellingShingle Symplectomorphisms of some Weinstein 4-manifolds
Hacking, Paul
Keating, Ailsa
Symplectic Geometry
Algebraic Geometry
Let M be a Weinstein four-manifold mirror to Y\D for (Y,D) a log Calabi--Yau surface; intuitively, this is typically the Milnor fibre of a smoothing of a cusp singularity. We introduce two families of symplectomorphisms of M: Lagrangian translations, which we prove are mirror to tensors with line bundles; and nodal slide recombinations, which we prove are mirror to automorphisms of (Y,D). The proof uses a detailed compatibility between the homological and SYZ view-points on mirror symmetry. Together with spherical twists, these symplectomorphisms are expected to generate all autoequivalences of the wrapped Fukaya category of M which are compactly supported in a categorical sense. A range of applications is given.
title Symplectomorphisms of some Weinstein 4-manifolds
topic Symplectic Geometry
Algebraic Geometry
url https://arxiv.org/abs/2112.06797