Polynomial interpolation results in Sobolev spaces
Journal of Computational and Applied Mathematics - Orthogonal polynomials and numerical methods
A posteriori error estimates based on hierarchical bases
SIAM Journal on Numerical Analysis
Computational Optimization and Applications
A p-version finite element method for nonlinear elliptic variational inequalities in 2D
Numerische Mathematik
Adaptive hp-versions of BEM for Signorini problems
Applied Numerical Mathematics - Selected papers from the 16th Chemnitz finite element symposium 2003
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We present a quadratic programming problem arising from the p-version for a finite element method with an obstacle condition prescribed in Gauss-Lobatto points. We show convergence of the approximate solution to the exact solution in the energy norm. We show an a-priori error estimate and derive an a-posteriori error estimate based on bubble functions which is used in an adaptive p-version. Numerical examples show the superiority of the p-version compared with the h-version.