- 作者: 李宗元
- 作者服務機構: 國立中央大學數系
- 中文摘要: Spline functions是一種間段多項式,近年來在數值分析上非常風行,由於這類函數有很好的近似性質,在微分方程的近似解求法上很是有用,一般在偏微分方程近似解方法中用到此類函數時,均在用於Galerki。方怯中,這裹我們考慮一種新方法,是將Spline functions用於一種collocatioion及finite difference之混合法中。為求簡明,我們只討論熱傳導的方程解法( 見第二節,其實很明顯的,這方法可用在更廣的拋物性方程上),在第三節裹,我們並證明,如果間隔趨近於零,則近似解也趨近於真實解。
- 英文摘要: In this report, we consider a new method, namely a mixed spline collo-cation and finite difference method, for numerical solutions of parabolicequations. This is based on the method developed in Lee and Sincovec:Spline function collocation methods for linear boundary value problems(Bull. Inst. Math. Acad. Sinica. 1一1, 1973), for ordinary differential equa-tions. Specifically, we consider the heat equation and describe the methodin section II, and in section III we prove the convergence of the approxi-mate solutions. The method is applicable to more general type of problems,but corresponding convergence proofs may be difficult.
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