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- W2238795758 abstract "This paper presents a finite point method based on directional derivatives for diffusion equation on 2D scattered points. To discretize the diffusion operator at a given point, a six-point stencil is derived by employing explicit numerical formulae of directional derivatives, namely, for the point under consideration, only five neighbor points are involved, the number of which is the smallest for discretizing diffusion operator with first-order accuracy. A method for selecting neighbor point set is proposed, which satisfies the solvability condition of numerical derivatives. Some numerical examples are performed to show the good performance of the proposed method. Keywords—Finite point method, directional derivatives, diffusion equation, method for selecting neighbor point set." @default.
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- W2238795758 date "2011-09-27" @default.
- W2238795758 modified "2023-09-28" @default.
- W2238795758 title "A Finite Point Method Based on Directional Derivatives for Diffusion Equation" @default.
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