A Legendre Spectral Collocation Method for the Biharmonic Dirichlet Problem
Bernard Bialecki, Andreas Karageorghis (2010)
ESAIM: Mathematical Modelling and Numerical Analysis
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A Legendre spectral collocation method is presented for the solution of the biharmonic Dirichlet problem on a square. The solution and its Laplacian are approximated using the set of basis functions suggested by Shen, which are linear combinations of Legendre polynomials. A Schur complement approach is used to reduce the resulting linear system to one involving the approximation of the Laplacian of the solution on the two vertical sides of the square. The Schur complement system is...