This note deals with vectorial local minimizers of some integral functionals related to nonlinear elasticity theory. Under some structural assumptions, we derive that each component of the local minimizers lies in the De Giorgi class, thus the minimizers are locally Hölder continuous. We emphasize that no convexity is assumed. On the other hand, a special dependence on minors, taken from the Jacobian matrix, plays an important role in the proof.
"Hölder continuity for vectorial local minimizers of variational integrals." Rocky Mountain J. Math. 52 (1) 289 - 297, February 2022. https://doi.org/10.1216/rmj.2022.52.289