Max–min measures on ultrametric spaces

Ultrametrization of the set of all probability measures of compact support on the ultrametric spaces was first defined by Hartog and de Vink. In this paper we consider a similar construction for the so-called max–min measures on the ultrametric spaces. In particular, we prove that the functors of max–min measures and idempotent measures are isomorphic. However, we show that this is not the case for the monads generated by these functors.