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Boundary regularity for nonlinear elliptic systems,
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Boundary regularity for quasilinear elliptic systems, Communications in PDE. 27 (2002) 2491-2512. Online version of the paper is available here. |
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(with F. Duzaar, K. Steffen) Optimal regularity results via A-harmonic approximation, in Geometric analysis and nonlinear partial differential equations, S. Hildebrandt, H. Karcher eds. (Springer-Verlag, Berlin Heidelberg New York, 2003), 265-296. |
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(with M. Kronz) Minimizing conformal energies in homotopy classes, Forum Math. 16 (2004) 841-864. Online version of the paper is available here. |
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(with F. Duzaar, M. Kronz) Regularity of almost minimizers of quasi-convex variational integrals with subquadratic growth, to appear in: Annali di Matematica pura ed applicata. |
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(with F. Duzaar, M. Kronz) Partial and full boundary regularity for minimizers of functionals with nonquadratic growth, J. convex analysis 11 (2004) 437-476. Online version of the paper is available here. |
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(with A. Gastel, M. Kronz) Removable singularities for p-harmonic maps: the subquadratic case, to appear in: Advances in Geometry. |