TY - GEN T1 - Higher order variational problems on two-dimensional domains A1 - Bildhauer,Michael A1 - Fuchs,Martin Y1 - 2011/12/02 N2 - Let u:\mathbb{R}^{2}\supset\Omega\rightarrow\mathbb{R}^{M} denote a local minimizer of J[w]=\int_{\Omega}f(\nabla^{k}w)dx, where k\geq2 and \nabla^{k}w is the tensor of all k^{th} order (weak) partial derivatives. Assuming rather general growth and ellipticity conditions for f, we prove that u actually belongs to the class C^{k,\alpha}(\Omega;\mathbb{R}^{M}) by the way extending the result of [BF2] to the higher order case by using different methods. A major tool is a lemma on the higher integrability of functions established in [BFZ]. CY - Saarbrücken PB - Universitäts- und Landesbibliothek AD - Postfach 151141, 66041 Saarbrücken UR - http://scidok.sulb.uni-saarland.de/volltexte/2011/4499 ER -