Rational points and derived equivalence

Nicolas Addington, Benjamin Antieau, Sarah Frei, Katrina Honigs

Published 2019-06-05Version 1

We give the first examples of derived equivalences between varieties defined over non-closed fields where one has a rational point and the other does not. We begin with torsors over Jacobians of curves over Q and F_q(t), and conclude with a pair of hyperkaehler 4-folds over Q. The latter is independently interesting as a new example of a transcendental Brauer-Manin obstruction to the Hasse principle.