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Chapitre D'ouvrage Année : 2017

Cycles, derived categories, and rationality

Résumé

Our main goal is to give a sense of recent developments in the (stable) rationality problem from the point of view of unramified cohomology and 0-cycles as well as derived categories and semiorthogonal decompositions, and how these perspectives intertwine and reflect each other. In particular, in the case of algebraic surfaces, we explain the relationship between Bloch's conjecture, Chow-theoretic decompositions of the diagonal, categorical repre-sentability, and the existence of phantom subcategories of the derived category.
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hal-01959423 , version 1 (18-12-2018)

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  • HAL Id : hal-01959423 , version 1

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Asher Auel, Marcello Bernardara. Cycles, derived categories, and rationality. Surveys on Recent Developments in Algebraic Geometry, Proceedings of Symposia in Pure Mathematics 95, 95, 2017, Proceedings of Symposia in Pure Mathematics. ⟨hal-01959423⟩
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