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Convergence Results for Pseudospectral Approximations of Hyperbolic Systems by a Penalty-Type Boundary Treatment
Daniele Funaro and David Gottlieb
Mathematics of Computation
Vol. 57, No. 196 (Oct., 1991), pp. 585-596
Published by: American Mathematical Society
Stable URL: http://www.jstor.org/stable/2938706
Page Count: 12
You can always find the topics here!Topics: Boundary conditions, Approximation, Matrices, Scalars, Polynomials, Spectral methods, Mathematical problems, Textual collocation, Perceptron convergence procedure, Error rates
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In a previous paper we have presented a new method of imposing boundary conditions in the pseudospectral Chebyshev approximation of a scalar hyperbolic equation. The novel idea of the new method is to collocate the equation at the boundary points as well as in the inner grid points, using the boundary conditions as penalty terms. In this paper we extend the above boundary treatment to the case of pseudospectral approximations to general constant-coefficient hyperbolic systems of equations, and we provide error estimates for the pseudospectral Legendre method. The same scheme can be implemented also in the general (even nonlinear) case.
Mathematics of Computation © 1991 American Mathematical Society