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The wall-crossing formula and Lagrangian mutations
Univ Illinois, 1409 W Green St, Urbana, IL 61081 USA.
Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Mathematics. Univ Calif Berkeley, Berkeley, CA 94720 USA.ORCID iD: 0000-0003-1390-540X
2020 (English)In: Advances in Mathematics, ISSN 0001-8708, E-ISSN 1090-2082, Vol. 361, article id 106850Article in journal (Refereed) Published
Abstract [en]

We prove a general form of the wall-crossing formula which relates the disk potentials of monotone Lagrangian submanifolds with their Floer-theoretic behaviour away from a Donaldson divisor. We define geometric operations called mutations of Lagrangian tori in del Pezzo surfaces and in tonic Fano varieties of higher dimension, and study the corresponding wall-crossing formulas that compute the disk potential of a mutated torus from that of the original one. In the case of del Pezzo surfaces, this justifies the connection between Vianna's tori and the theory of mutations of Landau-Ginzburg seeds. In higher dimension, this provides new Lagrangian tori in tonic Fanos corresponding to different chambers of the mirror variety, including ones which are conjecturally separated by infinitely many walls from the chamber containing the standard tonic fibre. (C) 2019 Elsevier Inc. All rights reserved.

Place, publisher, year, edition, pages
ACADEMIC PRESS INC ELSEVIER SCIENCE , 2020. Vol. 361, article id 106850
Keywords [en]
Landau-Ginzburg potential, Holomorphic disk, Lagrangian torus, Wall-crossing, Cluster transformation, Mutation
National Category
Geometry
Identifiers
URN: urn:nbn:se:uu:diva-406466DOI: 10.1016/j.aim.2019.106850ISI: 000509814600015OAI: oai:DiVA.org:uu-406466DiVA, id: diva2:1413094
Funder
Knut and Alice Wallenberg FoundationAvailable from: 2020-03-09 Created: 2020-03-09 Last updated: 2020-03-09Bibliographically approved

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Tonkonog, Dmitry

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