Neck pinch singularities and Joyce conjectures in Lagrangian mean curvature flow with circle symmetry

Fuente: arXiv
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Main Authors: Lotay, Jason D., Oliveira, Goncalo
Format: Preprint
Published: 2023
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author Lotay, Jason D.
Oliveira, Goncalo
author_facet Lotay, Jason D.
Oliveira, Goncalo
contents In this article we consider the Lagrangian mean curvature flow of compact, circle-invariant, almost calibrated Lagrangian surfaces in hyperkähler 4-manifolds with circle symmetry. We show that this Lagrangian mean curvature flow can be continued for all time, through finite time singularities, and converges to a chain of special Lagrangians, thus verifying various aspects of Joyce's conjectures in this setting. We show that the singularities of the flow are neck pinches in the sense conjectured by Joyce. We also give examples where such finite time singularities are guaranteed to occur.
format Preprint
id arxiv_https___arxiv_org_abs_2305_05744
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Neck pinch singularities and Joyce conjectures in Lagrangian mean curvature flow with circle symmetry
Lotay, Jason D.
Oliveira, Goncalo
Differential Geometry
Analysis of PDEs
Symplectic Geometry
53E10, 53C38, 53C26
In this article we consider the Lagrangian mean curvature flow of compact, circle-invariant, almost calibrated Lagrangian surfaces in hyperkähler 4-manifolds with circle symmetry. We show that this Lagrangian mean curvature flow can be continued for all time, through finite time singularities, and converges to a chain of special Lagrangians, thus verifying various aspects of Joyce's conjectures in this setting. We show that the singularities of the flow are neck pinches in the sense conjectured by Joyce. We also give examples where such finite time singularities are guaranteed to occur.
title Neck pinch singularities and Joyce conjectures in Lagrangian mean curvature flow with circle symmetry
topic Differential Geometry
Analysis of PDEs
Symplectic Geometry
53E10, 53C38, 53C26
url https://arxiv.org/abs/2305.05744