3 papers
math-ph2026
On the single field formulation in magnetostatics
Stefan Krömer, Giuseppe Tomassetti
We systematically discuss the equivalence of two variational formulations of magnetostatics, in terms of magnetization and magnetic field on the one hand and the single field formu…
math.AP2024
Measure structured deformations
stefan Krömer, Martin Kružík, Marco Morandotti +1
Measure structured deformations are introduced to present a unified theory of deformations of continua. The energy associated with a measure structured deformation is defined via r…
math.CA2007
Existence and symmetry of minimizers for nonconvex radially symmetric variational problems
Stefan Krömer
Nonconvex functionals with spherical symmetry are studied. Existence of one and radial symmetry of all global minimizers is shown with an approach based on convex relaxation.