On the topological pressure of axial product on trees

Jung-Chao Ban, Yu-Liang Wu

Published 2023-10-16Version 1

This article investigates the topological pressure of isotropic axial products of Markov subshift on the $d$-tree. We show that the quantity increases with dimension $d$, and demonstrate that, with the introduction of surface pressure, the two types of pressure admit the same asymptotic value. To this end, the pattern distribution vectors and the associated transition matrices are introduced herein to partially transplant the large deviation theory to tree-shifts, and so the increasing property is proved via an almost standard argument. An application of the main result to a wider class of shift spaces is also provided in this paper, and numerical experiments are included for the purpose of verification.