Algebraic varieties with automorphism groups of maximal rank
arXiv:1201.2338
Abstract
We confirm, to some extent, the belief that a projective variety X has the largest number (relative to the dimension of X) of independent commuting automorphisms of positive entropy only when X is birational to a complex torus or a quotient of a torus. We also include an addendum to an early paper though it is not used in the present paper.
Mathematische Annalen (to appear)