Seminarium "The Trans-Carpathian Seminar on Geometry & Physics"

The aim of the talk is to remind the notions of morphisms of vectorbundles, modules, Lie algebroids and groupoids and Poisson bundles. Afterwards, corresponding notions of comorphisms (in a sense of Higgins and Mackenzie) are introduced. Comorphisms are used to show some important dualities between selected categories.