There is no stationary $p$-cyclically monotone Poisson matching in 2D

Abstract

We show that for $p>1$ there is no $p$-cyclically monotone stationary matching of two independent Poisson processes in dimension $d=2$. The proof combines the $p$-harmonic approximation result from \cite[Theorem 1.1]{koch23} with local asymptotics for the two-dimensional matching problem. Moreover, we prove a.s. local upper bounds of the correct order in the case $p>1$, which, to the best of our knowledge, are not readily available in the current literature.