Original version
Kyoto Journal of Mathematics. 2023, 63 (3), 615-639, DOI: https://doi.org/10.1215/21562261-10577928
Abstract
We prove that any symplectic automorphism of finite order on a manifold of type OG6 acts trivially on the Beauville–Bogomolov–Fujiki lattice and that any birational transformation of finite order acts trivially on its discriminant group. Moreover, we classify all possible invariant and coinvariant sublattices.