Acta mathematica scientia,Series A ›› 2002, Vol. 22 ›› Issue (3): 361-372.
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QIU Chun-Yu, FU Chu-Li
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国家自然科学基金(批准号49875024)资助课题
Abstract:
一维抛物型方程如下定解问题狌狋+狌狓=狌狓狓, 0≤狓< ∞,0≤狋< ∞,狌(1,狋)=犵(狋), 0≤狋< ∞,狌(狓,0)=0, 狓≥0烅烄烆.是一个不适定问题.数据犵的微小变化可以引起解的巨大误差.该文通过构造一个在频域具紧支集的小波并在尺度空间上展开数据和解,滤除了高频分量,并结和Galerkin方法,建立了一种逼近准确解的正则化方法,恢复了解对数据的连续依赖性,并建立了误差估计.
Key words: 反问题;不适定问题;抛物型方程;小波;正则化
CLC Number:
QIU Chun-Yu, FU Chu-Li. 一个抛物型方程不适定问题的小波正则化方法[J].Acta mathematica scientia,Series A, 2002, 22(3): 361-372.
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