Smooth subvarieties of JacobiansArticle
Auteurs : Olivier Benoist ; Olivier Debarre
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Olivier Benoist;Olivier Debarre
We give new examples of algebraic integral cohomology classes on smooth projective complex varieties that are not integral linear combinations of classes of smooth subvarieties. Some of our examples have dimension 6, the lowest possible. The classes that we consider are minimal cohomology classes on Jacobians of very general curves. Our main tool is complex cobordism.
Comment: 11 pages, v3: final version
Volume : Volume spécial en l'honneur de Claire Voisin
Publié le : 12 juin 2023
Accepté le : 16 mars 2023
Soumis le : 17 novembre 2022
Mots-clés : Mathematics - Algebraic Geometry, 14K12, 14C25, 57R77
Financement :
Source : OpenAIRE Graph- Modern Aspects of Geometry: Categories, Cycles and Cohomology of Hyperkähler Varieties; Financeur: European Commission; Code: 854361