Varieties with representable CH_0-group and a question of Colliot-Thélène
arXiv:2508.02331
Abstract
We continue our investigation of the geometry of the Albanese morphism on 0-cycles. We provide an example of a smooth projective variety with representable CH_0-group but with no universal 0-cycle, which answers a question asked by Colliot-Thélène. Our construction relies on a counterexample to the integral Hodge conjecture provided by Benoist and Ottem.
Final version, to appear in Algebraic Geometry