journal6 ›› 2013, Vol. 34 ›› Issue (4): 16-18.DOI: 10.3969/j.issn.1007-2985.2013.03.004

• 数学 • 上一篇    下一篇

带非连续解椭圆问题的3次Hermite配点方法

  

  1. (长沙理工大学数学与计算科学学院,湖南 长沙 410114)
  • 出版日期:2013-07-25 发布日期:2013-07-18
  • 作者简介:姜英军(1975-),男,湖南长沙人,长沙理工大学数学与计算科学学院副教授,博士,主要从事微分方程数值解研究.
  • 基金资助:

    国家自然科学基金资助项目(10901027)

Cubic Hermite Collocation Method for Solving the EllipticProblem with a Discontinuous Solution

  1. (Department of Mathematics and Computing Science,Changsha University of Science and Technology,Changsha 410114,China)
  • Online:2013-07-25 Published:2013-07-18

摘要:使用3次Hermite配点方法,对一类带有非连续解的椭圆问题进行数值求解,將其解的不连续点取作网格节点,解在不连续点的左右极限作为未知量,结合解在不连续点的“跳跃”信息对原问题进行离散.数值实验表明此方法的收敛阶为O(h4).

关键词: 椭圆问题, Hermite插值, 配点方法

Abstract: The cubic Hermite collocation method is used in discretization of an elliptic problem with a discontinuous solution.The discontinuous points of the solution are taken as grid points,the left and right limits of the solution at the discontinuous points as unknowns.The jumpings of the solution at the discontinuous points are combined to dicrete the original problem.The test indicates that the method has the convergence of order O(h4).

Key words: elliptic problem, Hermite interpolation, collocation method

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