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arXiv · 2210.14733

An asymptotic for sums of Lyapunov exponents in families

Patrick Ingram·David Jaramillo-Martinez·Jorge Mello
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Abstract

Let f_t be a meromorphic family of endomorphisms of P^N_C of degree at least 2, and let L(f_t) be the sum of Lyapunov exponents associated to f_t. Favre showed that L(f_t)=L(f)\log|t^{-1}|+o(\log|t^{-1}|) as t -> 0, where L(f) is the sum of Lyapunov exponents on the generic fibre, interpreted as an endomorphism of some projective Berkovich space. Under some additional constraints on the family, we provide an explicit error term.

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Patrick Ingram, David Jaramillo-Martinez, Jorge Mello. 2022-10-26. An asymptotic for sums of Lyapunov exponents in families. https://arxiv.org/abs/2210.14733

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