Discrete equivalence of non-positive at infinity plane valuations
Carlos Galindo, Francisco Monserrat, Carlos-Jesús Moreno-Ávila
Abstract
Non-positive at infinity valuations are a class of real plane valuations which have a nice geometrical behavior. They are divided in three types. We study the dual graphs of non-positive at infinity valuations and give an algorithm for obtaining them. Moreover we compare these graphs attending the type of their corresponding valuation.