Dynamical degrees of automorphisms of K3 surfaces with Picard number 2
Algebraic Geometry
2025-09-19 v2
Abstract
We show that there exists an automorphism of a projective K3 surface with Picard number such that the trace of its action on the Picard lattice is . Together with a result of K. Hashimoto, J. Keum and K. Lee, we determine the set of dynamical degrees of automorphisms of projective K3 surfaces with Picard number .
Cite
@article{arxiv.2405.15195,
title = {Dynamical degrees of automorphisms of K3 surfaces with Picard number 2},
author = {Yuta Takada},
journal= {arXiv preprint arXiv:2405.15195},
year = {2025}
}
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11 pages