A case of the deformational Hodge conjecture via a pro Hochschild-Kostant-Rosenberg theorem
arXiv:1310.1900 · doi:10.1016/j.crma.2014.01.008
Abstract
Following ideas of Bloch, Esnault, and Kerz, the deformational part of Grothendieck's variational Hodge conjecture is established for proper, smooth schemes over , where is an algebraic extension of the rational numbers. The main tool is a pro Hochschild-Kostant-Rosenberg theorem for Hochschild homology.
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