Growth of generalized greatest common divisors along orbits of self-rational maps on projective varieties
Algebraic Geometry
2025-07-08 v1 Dynamical Systems
Number Theory
Abstract
Consider a dominant rational self-map on a smooth projective variety defined over . We prove that \begin{align} \lim_{n \to \infty} \frac{h_{Y}(f^{n}(x))}{h_{H}(f^{n}(x)) } = 0, \end{align} where is a height associated with a closed subscheme of codimension , is any ample height on , and is a point with well-defined orbit, under the following assumptions: (1) either is a morphism, or is pure dimensional, regularly embedded in , and contained in the locus over which all iterates of are finite; (2) the orbit of is generic; (3) , where is the -th dynamical degree of and is the arithmetic degree of .
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Cite
@article{arxiv.2507.05027,
title = {Growth of generalized greatest common divisors along orbits of self-rational maps on projective varieties},
author = {Yohsuke Matsuzawa},
journal= {arXiv preprint arXiv:2507.05027},
year = {2025}
}
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24 pages