Objective The proposed research is to apply recent ideas from mathematics and theoretical physics in a superspace setting. These ideas concern the differential geometry one encounters when dealing with extended objects rather than points. This should shed light on the long outstanding problem of the effective action of coincident branes, i.e. generalisations of Yang-Mills theories.The use of superspace in this novel mathematical setting seems essential to achieve this. This is a completely new approach to the problem, which will have wide-reaching consequences for the very fundaments of string theory, but also for phenomenological research in cosmology and high-energy physics model building. Fields of science natural sciencesphysical sciencestheoretical physicsstring theorynatural sciencesmathematicspure mathematicsgeometrynatural sciencesphysical sciencesastronomyphysical cosmology Keywords Abelian Super Effective Dynamics of Coincident supersymmetric branes Mills with derivative Corrections Non Non-Abelian Super-Yang-Mills with derivative Corrections String Theory Supergravity Yang Programme(s) FP6-MOBILITY - Human resources and Mobility in the specific programme for research, technological development and demonstration "Structuring the European Research Area" under the Sixth Framework Programme 2002-2006 Topic(s) MOBILITY-2.1 - Marie Curie Intra-European Fellowships (EIF) Call for proposal FP6-2002-MOBILITY-5 See other projects for this call Funding Scheme EIF - Marie Curie actions-Intra-European Fellowships Coordinator CTN (CENTER FOR THEORETICAL PHYSICS) UNIVERSITY OF GRONINGEN Address Netherlands See on map EU contribution € 0,00