Abstract
We show that any birational selfmap of a complex projective surface that has dynamical degree greater than one and is defined over a number field automatically satisfies the Bedford–Diller energy condition after a suitable birational conjugacy. As a consequence, the complex dynamics of the map is well behaved. We also show that there is a well-defined canonical height function.
Funding source: National Science Foundation
Award Identifier / Grant number: DMS-1266207
Award Identifier / Grant number: DMS-0943832
Award Identifier / Grant number: DMS-1045119
Funding statement: The first author was supported by NSF grant DMS-1266207. The second author was supported by NSF grants DMS-0943832 and DMS-1045119.
Acknowledgements
The authors would like to thank Jeff Diller, Romain Dujardin, Joe Silverman, and the referees for useful comments.
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© 2018 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
- Frontmatter
- The spectral decomposition of shifted convolution sums over number fields
- Hodge theory on Cheeger spaces
- Geometric structures of collapsing Riemannian manifolds II
- Combinatorics and topology of proper toric maps
- On the long time behaviour of the conical Kähler–Ricci flows
- On invariance of plurigenera for foliations on surfaces
- Behavior of canonical divisors under purely inseparable base changes
- Algebraic nature of singular Riemannian foliations in spheres
- On the complex dynamics of birational surface maps defined over number fields
Articles in the same Issue
- Frontmatter
- The spectral decomposition of shifted convolution sums over number fields
- Hodge theory on Cheeger spaces
- Geometric structures of collapsing Riemannian manifolds II
- Combinatorics and topology of proper toric maps
- On the long time behaviour of the conical Kähler–Ricci flows
- On invariance of plurigenera for foliations on surfaces
- Behavior of canonical divisors under purely inseparable base changes
- Algebraic nature of singular Riemannian foliations in spheres
- On the complex dynamics of birational surface maps defined over number fields