a1 Department of Mathematics, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan (firstname.lastname@example.org)
We construct moduli curves of polarized supersingular K3 surfaces in characteristic 2 with Artin invariant 2. As an application, we detect a ‘jump’ phenomenon in a family of automorphism groups of supersingular K3 surfaces with a constant Néron–Severi lattice.
(Online publication May 30 2006)
(Received June 11 2004)
Dedicated to Professor Igor V. Dolgachev for his 60th birthday