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arXiv · 1411.0769

Automorphisms of elliptic $K3$ surfaces and Salem numbers of maximal degree

Hélène Esnault·Keiji Oguiso·Xun Yu
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Abstract

Using elliptic structures, we show that any supersingular K3 surface of Artin invariant $1$ in characteristic $p \not= 5$, $7$, $13$ has an automorphism the entropy of which is the natural logarithm of a Salem number of degree $22$.

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Hélène Esnault, Keiji Oguiso, Xun Yu. 2014-11-17. Automorphisms of elliptic $K3$ surfaces and Salem numbers of maximal degree. https://arxiv.org/abs/1411.0769

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