Almost toric fibrations on symplectic blow ups

Given a symplectic 4-manifold with an almost toric fibration and a symplectic ball embedding whose image under the moment map is contained in an affine convex set R, we produce a symplectomorphism between the almost toric blow-up and the symplectic blow-up which is the identity on the pre-image of the complement of R. Furthermore, under a compatibility condition of the ball embedding with the boundary divisor, we show that the symplectomorphism can be chosen to preserve the induced symplectic log canonical divisors.

Publication Details

Journal
ArXiv.org
Published
2025-10-01
Primary Topic
Venomous Animal Envenomation and Studies
Type
article
Field-Weighted Citation Impact
0.00

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article

Almost toric fibrations on symplectic blow ups

ArXiv.org
Venomous Animal Envenomation and Studies
article

Almost toric fibrations on symplectic blow ups

article en

Abstract

Given a symplectic 4-manifold with an almost toric fibration and a symplectic ball embedding whose image under the moment map is contained in an affine convex set R, we produce a symplectomorphism between the almost toric blow-up and the symplectic blow-up which is the identity on the pre-image of the complement of R. Furthermore, under a compatibility condition of the ball embedding with the boundary divisor, we show that the symplectomorphism can be chosen to preserve the induced symplectic log canonical divisors.

ArXiv.org
Fonds De La Recherche Scientifique - FNRS, Fonds Wetenschappelijk Onderzoek, Israel Science Foundation
Openalex Percentile: Top 36%
Venomous Animal Envenomation and Studies
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