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- W4322495477 abstract "
 
 
 It is usually desirable to approximate the solution of mathemati- cal problems with high-order of accuracy and preferably using com- pact stencils. This work presents an approach for deriving high-order compact discretization of heat equation with source term. The key contribution of this work is the use of Hermite polynomials to reduce second order spatial derivatives to lower order derivatives. This does not involve the use of the given equation, so it is universal. Then, Tay- lor expansion is used to obtain a compact scheme for first derivatives. This leads to a fourth-order approximation in space. Crank-Nicholson scheme is then applied to derive a fully discrete scheme. The result- ing scheme coincides with the fourth-order compact scheme, but our derivation follows a different philosophy which can be adapted for other equations and higher order accuracy. Two numerical experiments are provided to verify the fourth-order accuracy of the approach.
 
 
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- W4322495477 created "2023-02-28" @default.
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- W4322495477 date "2023-02-25" @default.
- W4322495477 modified "2023-09-26" @default.
- W4322495477 title "Hermite Interpolation Approach to High-Order Approximation of Heat Equations" @default.
- W4322495477 doi "https://doi.org/10.24018/ejmath.2023.4.1.208" @default.
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