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Arithmetic of zero-cycles on products of Kummer varieties and K3 surfaces

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Speaker: 
Francesca Balestrieri
Affiliation: 
MPIM
Date: 
Tue, 2018-11-27 14:00 - 15:00
Location: 
MPIM Lecture Hall

The following is joint work with Rachel Newton. In the spirit of work by Yongqi Liang, we relate the arithmetic of rational points to that of zero-cycles for the class of Kummer varieties over number fields. In particular, if X is any Kummer variety over a number field k, we show that if the Brauer-Manin obstruction is the only obstruction to the existence of rational points on X over all finite extensions of k, then the Brauer-Manin obstruction is the only obstruction to the existence of a zero-cycle of any odd degree on X. Building on this result and on some other recent results by Ieronymou, Skorobogatov and Zarhin, we further prove a similar Liang-type result for products of Kummer varieties and K3 surfaces over k.

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