Nonexistence of solutions in nonconvex multidimensional variational problems

Citation
T. Roubicek et V. Sverak, Nonexistence of solutions in nonconvex multidimensional variational problems, J CONVEX AN, 7(2), 2000, pp. 427-435
Citations number
23
Categorie Soggetti
Mathematics
Journal title
JOURNAL OF CONVEX ANALYSIS
ISSN journal
09446532 → ACNP
Volume
7
Issue
2
Year of publication
2000
Pages
427 - 435
Database
ISI
SICI code
0944-6532(2000)7:2<427:NOSINM>2.0.ZU;2-A
Abstract
In the scaler n-dimensional situation, the extreme points in the set of cer tain gradient L-P-Young measures are studied. For n = 1, such Young measure s must he composed from Diracs, while for n greater than or equal to 2 ther e are non-Dirac extreme points among them. for n greater than or equal to 3 . some are even weakly* continuous. This is used to construct nontrivial ex amples of nonexistence of solutions of the minimization-type variational pr oblem integral (Omega) W(x, delu) dx with a Caratheodory (if n greater than or equal to 2) or even continuous (if n greater than or equal to 3) integr and W.