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Exact Lagrangian tori in symplectic Milnor fibers constructed with fillings

Orsola Capovilla-Searle

Algebraic & Geometric Topology 25 (2025) 3225–3249
Abstract

We use exact Lagrangian fillings and Weinstein handlebody diagrams to construct infinitely many distinct exact Lagrangian tori in 4-dimensional Milnor fibers of isolated hypersurface singularities with positive modality. We also provide a generalization of a criterion for when the symplectic homology of a Weinstein 4-manifold is nonvanishing given an explicit Weinstein handlebody diagram.

Keywords
Weinstein, Milnor fiber, Lagrangian surface, Legendrian
Mathematical Subject Classification
Primary: 53Dxx
Secondary: 57Kxx
References
Publication
Received: 11 February 2022
Revised: 5 December 2023
Accepted: 19 May 2024
Published: 1 October 2025
Authors
Orsola Capovilla-Searle
Department of Mathematics
University of California Davis
Davis, CA
United States

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