Walls and asymptotics for Bridgeland stability conditions on 3-folds

We consider Bridgeland stability conditions for three-folds conjectured by Bayer-Macr\`i-Toda in the case of Picard rank one. We study the differential geometry of numerical walls, characterizing when they are bounded, discussing possible intersections, and showing that they are essentially regular....

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Main Authors: Marcos Jardim, Antony Maciocia
Format: Article
Language:English
Published: Association Epiga 2022-12-01
Series:Épijournal de Géométrie Algébrique
Subjects:
Online Access:https://epiga.episciences.org/6819/pdf
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author Marcos Jardim
Antony Maciocia
author_facet Marcos Jardim
Antony Maciocia
author_sort Marcos Jardim
collection DOAJ
description We consider Bridgeland stability conditions for three-folds conjectured by Bayer-Macr\`i-Toda in the case of Picard rank one. We study the differential geometry of numerical walls, characterizing when they are bounded, discussing possible intersections, and showing that they are essentially regular. Next, we prove that walls within a certain region of the upper half plane that parametrizes geometric stability conditions must always intersect the curve given by the vanishing of the slope function and, for a fixed value of s, have a maximum turning point there. We then use all of these facts to prove that Gieseker semistability is equivalent to asymptotic semistability along a class of paths in the upper half plane, and to show how to find large families of walls. We illustrate how to compute all of the walls and describe the Bridgeland moduli spaces for the Chern character (2,0,-1,0) on complex projective 3-space in a suitable region of the upper half plane.
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spelling doaj.art-750efe0dd3f0440c86fb42c33dd120de2024-03-22T09:11:16ZengAssociation EpigaÉpijournal de Géométrie Algébrique2491-67652022-12-01Volume 610.46298/epiga.2022.68196819Walls and asymptotics for Bridgeland stability conditions on 3-foldsMarcos JardimAntony MaciociaWe consider Bridgeland stability conditions for three-folds conjectured by Bayer-Macr\`i-Toda in the case of Picard rank one. We study the differential geometry of numerical walls, characterizing when they are bounded, discussing possible intersections, and showing that they are essentially regular. Next, we prove that walls within a certain region of the upper half plane that parametrizes geometric stability conditions must always intersect the curve given by the vanishing of the slope function and, for a fixed value of s, have a maximum turning point there. We then use all of these facts to prove that Gieseker semistability is equivalent to asymptotic semistability along a class of paths in the upper half plane, and to show how to find large families of walls. We illustrate how to compute all of the walls and describe the Bridgeland moduli spaces for the Chern character (2,0,-1,0) on complex projective 3-space in a suitable region of the upper half plane.https://epiga.episciences.org/6819/pdfmathematics - algebraic geometrymathematics - category theorymathematics - differential geometry14f08 (primary) 14a30, 14d20, 14j30, 18g80, 53a05 (secondary)
spellingShingle Marcos Jardim
Antony Maciocia
Walls and asymptotics for Bridgeland stability conditions on 3-folds
Épijournal de Géométrie Algébrique
mathematics - algebraic geometry
mathematics - category theory
mathematics - differential geometry
14f08 (primary) 14a30, 14d20, 14j30, 18g80, 53a05 (secondary)
title Walls and asymptotics for Bridgeland stability conditions on 3-folds
title_full Walls and asymptotics for Bridgeland stability conditions on 3-folds
title_fullStr Walls and asymptotics for Bridgeland stability conditions on 3-folds
title_full_unstemmed Walls and asymptotics for Bridgeland stability conditions on 3-folds
title_short Walls and asymptotics for Bridgeland stability conditions on 3-folds
title_sort walls and asymptotics for bridgeland stability conditions on 3 folds
topic mathematics - algebraic geometry
mathematics - category theory
mathematics - differential geometry
14f08 (primary) 14a30, 14d20, 14j30, 18g80, 53a05 (secondary)
url https://epiga.episciences.org/6819/pdf
work_keys_str_mv AT marcosjardim wallsandasymptoticsforbridgelandstabilityconditionson3folds
AT antonymaciocia wallsandasymptoticsforbridgelandstabilityconditionson3folds