activity
20072026
most citedPrimitive Divisors in Arithmetic Dynamics

49 citations · 161 across the 26 of their papers we have counts for

collaborators

38 papers

math.NT2026

Abelian dynamical Galois groups over global function fields

Andrea Ferraguti, Patrick Ingram, Carlo Pagano

We establish a function field analogue of a recent conjecture of Andrews--Petsche. Our main result characterizes abelian dynamical Galois groups to be precisely the isotrivial ones…

math.DS2022

An asymptotic for sums of Lyapunov exponents in families

Patrick Ingram, David Jaramillo-Martinez, Jorge Mello

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…

math.NT2022

A remark on post-critically finite compositions of polynomials

Benjamin Fraser, Patrick Ingram

The second author proved that the set of post-critically finite polynomials of given degree is a set of bounded height, up to change of variables. Motivated by an observation about…

math.NT2022

Explicit canonical heights for divisors relative to endomorphisms of

Patrick Ingram

Given an endomorphism f of projective space, we exhibit explicit bounds on the difference between the naive height of a divisor and its canonical height relative to f.

math.NT2021

Variation of the canonical height in a family of polarized dynamical systems

Patrick Ingram

Call and Silverman introduced the canonical height associated to a polarized dynamical system, that is, an endomorphism of a projective variety and an ample line bundle which pulls…

math.NT2020

Solutions to difference equations have few defects

Patrick Ingram

We demonstrate a strong form of Nevanlinna's Second Main Theorem for solutions to difference equations f(z+1)=R(z, f(z)), with the coefficients of R growing slowly relative to f, a…