We have decided to discontinue the publication of preprints on our preprint server as of 1 March 2024. The publication culture within mathematics has changed so much due to the rise of repositories such as ArXiV (www.arxiv.org) that we are encouraging all institute members to make their preprints available there. An institute's repository in its previous form is, therefore, unnecessary. The preprints published to date will remain available here, but we will not add any new preprints here.
MiS Preprint
39/1999
Bauer's maximum principle and hulls of sets
Martin Kruzik
Abstract
We use the Bauer maximum principle for quasiconvex, polyconvex and rank- one convex functions to derive Krein-Milman-type theorems for compact sets in Rm x n. Further we show that in general a set of quasiconvex extreme points is not invariant under transposition and it is different from the set of rank-one convex extreme points.