数学物理学报 ›› 1997, Vol. 17 ›› Issue (2): 134-144.

• 论文 • 上一篇    下一篇

一类双曲反问题的逼近算法及收敛性

刘继军, 王元明   

  1. 东南大学数力系 南京 210018
  • 收稿日期:1995-03-25 出版日期:1997-04-26 发布日期:1997-04-26
  • 基金资助:
    国家自然科学基金

Appromaxlmation and Convergence of a Class of Hyperbolic Inverse Problem

Liu Jijun, Wang Yuanming   

  1. Department of Mathematics, Southeast University Nanjing, 210018
  • Received:1995-03-25 Online:1997-04-26 Published:1997-04-26

摘要: 该文考虑地球物理勘探中出现的间断特性阻抗的反演问题.利用样条插值理论,把无穷维空间上的反问题用有限维空间上的反问题来近似.利用半群理论,证明了近似反问题之解收敛于原反问题之解.据此可得到求解反问题的一种稳定的近似算法.

关键词: 反问题, 逼近, 收敛性

Abstract: This paper deals with the impedance inverse problem arising in the seismic geophysics. By spline theory, we approximate the infinite dimensional inverse problem by a problem in the finite dimensional space. With the aid of semi-group theory, we prove that the solution of apprximate problem converges the solution of original inverse problem.

Key words: Inverse problem, approximation, convergence