Finite element approximation of elliptic partial differential equations on implicit surfaces

Authors:
Martin Burger
Affiliations:
Westfälische Wilhelms-Universität Münster, Institut für Numerik und Angewandte Mathematik, Einsteinstr. 62, 48163, Münster, Germany
Venue:
Computing and Visualization in Science
Year:
2009

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Abstract

The aim of this paper is to investigate finite element methods for the solution of elliptic partial differential equations on implicitly defined surfaces. The problem of solving such equations without triangulating surfaces is of increasing importance in various applications, and their discretization has recently been investigated in the framework of finite difference methods. For the two most frequently used implicit representations of surfaces, namely level set methods and phase-field methods, we discuss the construction of finite element schemes, the solution of the arising discretized problems, and provide error estimates. The convergence properties of the finite element methods are illustrated by computations for several test problems.