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A new discretization method of order four for the numerical solution of one-space dimensional second-order quasi-linear hyperbolic equation

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Three level-implicit finite difference methods of order four are discussed for the numerical solution of the mildly quasi-linear second-order hyperbolic equation A(x, t, u)uxx + 2B(x, t, u)uxt + C (x, t, u)utt = f(x, t, u, ux, ut), 0 < x < 1, t > 0 subject to appropriate initial and Dirichlet boundary conditions. A new technique is introduced to obtain the stability range of the wave equation in polar coordinates. Fourth-order approximation at the first time level for a more general case is also discussed. The fourth-order accuracy of the method is demonstrated computationally by four examples.
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Document Type: Miscellaneous

Publication date: 2002-11-01

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