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解非线性偏微分方程的插值小波算法
引用本文:朱静芬,邓小炎.解非线性偏微分方程的插值小波算法[J].浙江大学学报(理学版),2007,34(1):28-32.
作者姓名:朱静芬  邓小炎
作者单位:1. 浙江大学,数学系,浙江,杭州,310028
2. 华中农业大学,理学院,湖北,武汉,430070
摘    要:利用集小波分解和分形压缩变换思想构造了与标准小波具有类似尺度特点的连续插值小波基,给出了一维和二维空间中的插值型小波函数例子.利用集小波分解集和基函数的插值性质获得了由集小波分解点确定的积分公式,使非线性部分计算量由随尺度的平方增长关系变为线性增长关系.为说明方法的可行性,最后结合Newton速代法给出了一个数值例子.

关 键 词:集小波分解  插值小波  非线性  偏微分方程
文章编号:1008-9497(2007)01-028-05
修稿时间:2005-07-13

Interpolating wavelet method for solving nonlinear partial differential equations
ZHU Jing-fen,DENG Xiao-yan.Interpolating wavelet method for solving nonlinear partial differential equations[J].Journal of Zhejiang University(Sciences Edition),2007,34(1):28-32.
Authors:ZHU Jing-fen  DENG Xiao-yan
Institution:1. Department of Mathmatics, Zhejiang University, Hangzhou 310028, China 2. College of Basic Sciences, Huazhong Agriculture University, Wuhan 430070, China
Abstract:There is interpolation wavelet scheme for solving nonlinear partial differential equations. By using set wavelet decomposition and contraction fractal transforms, interpolation wavelets basis which have the same scale properties as standard wavelet basis is constructed and interpolation wavelet functions in one dimension and two dimension spaces is given. To overcome the problems of nonlinearity, set wavelet decomposition and properties of ba- sis functions are applied to obtain knot oriented quadrature rules. A numerical example, confirming the applicability of our scheme, is presented.
Keywords:set wavelet decomposition interpolation wavelet nonlinear partial differential equation
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