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Circular spherical divisor and their contact topology

Circular spherical divisor and their contact topology
Circular spherical divisor and their contact topology
This paper investigates the symplectic and contact topology associated to circular spherical divisors. We classify, up to toric equivalence, all concave circular spherical divisors D that can be embedded symplectically into a closed symplectic 4-manifold and show they are all realized as symplectic log Calabi-Yau pairs if their complements are minimal. We then determine the Stein fillability and rational homology type of all minimal symplectic fillings for the boundary torus bundles of such D. When D is anticanonical and convex, we give explicit betti number bounds for Stein fillings of its boundary contact torus bundle.
Log Calabi-Yau surfaces, symplectic log Calabi-Yau, symplectic divisor, contact torus bundle
1019-8385
Li, Tian-Jun
a5772d84-1e2d-4691-a782-cc3dfe66f1eb
Mak, Cheuk Yu
49c234b8-842f-4cda-b082-d36505c24626
Min, Jie
0f72b14f-ab25-4715-bc6c-faf873f83fd3
Li, Tian-Jun
a5772d84-1e2d-4691-a782-cc3dfe66f1eb
Mak, Cheuk Yu
49c234b8-842f-4cda-b082-d36505c24626
Min, Jie
0f72b14f-ab25-4715-bc6c-faf873f83fd3

Li, Tian-Jun, Mak, Cheuk Yu and Min, Jie (2021) Circular spherical divisor and their contact topology. Communications in Analysis and Geometry. (In Press)

Record type: Article

Abstract

This paper investigates the symplectic and contact topology associated to circular spherical divisors. We classify, up to toric equivalence, all concave circular spherical divisors D that can be embedded symplectically into a closed symplectic 4-manifold and show they are all realized as symplectic log Calabi-Yau pairs if their complements are minimal. We then determine the Stein fillability and rational homology type of all minimal symplectic fillings for the boundary torus bundles of such D. When D is anticanonical and convex, we give explicit betti number bounds for Stein fillings of its boundary contact torus bundle.

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LogCYcontact - Accepted Manuscript
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More information

Accepted/In Press date: 9 November 2021
Keywords: Log Calabi-Yau surfaces, symplectic log Calabi-Yau, symplectic divisor, contact torus bundle

Identifiers

Local EPrints ID: 476969
URI: http://eprints.soton.ac.uk/id/eprint/476969
ISSN: 1019-8385
PURE UUID: db1215d6-3f01-46c9-aa8d-d745e2ee4ee2
ORCID for Cheuk Yu Mak: ORCID iD orcid.org/0000-0001-6334-7114

Catalogue record

Date deposited: 22 May 2023 17:06
Last modified: 17 Mar 2024 04:17

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Contributors

Author: Tian-Jun Li
Author: Cheuk Yu Mak ORCID iD
Author: Jie Min

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