2024/02/21 by Young, Marley
#11G50 #11J86 #37P05 #Dynamical Systems (math.DS) #FOS: Mathematics #Number Theory (math.NT)
paper · doi:10.48550/arxiv.2402.13713
We consider semigroup dynamical systems defined by several monnomials over a number field K. We prove a finiteness result for preperiodic points of such systems which are S-integral with respect to a non-preperiodic point β, which is uniform as β varies over number fields of bounded degree. This generalises results of Baker, Ih and Rumely, which were made uniform by Yap, and verifies a special case of a natural generalisation of a conjecture of Ih.