Let A: = ISP(P)be

Abstract. Weestablishcategoricaldualitiesbetweenvarietiesofisotropicmedianalgebras and suitable categories of operational and relational topological structures. We follow ageneraldualitytheoryofB.A.DaveyandH.Werner. Thedualityresultsareusedto describefreeisotropicmedianalgebras. Ifthenumberoffreegeneratorsislessthanfive, thedescriptionisdetailed