Olivier Benoist ; Olivier Debarre - Smooth subvarieties of Jacobians

epiga:10321 - Épijournal de Géométrie Algébrique, June 12, 2023, Special volume in honour of Claire Voisin - https://doi.org/10.46298/epiga.2023.10321
Smooth subvarieties of Jacobians

Authors: 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.

    Volume: Special volume in honour of Claire Voisin
    Published on: June 12, 2023
    Accepted on: June 12, 2023
    Submitted on: November 17, 2022
    Keywords: Mathematics - Algebraic Geometry,14K12, 14C25, 57R77

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