Acta mathematica scientia,Series A ›› 1998, Vol. 18 ›› Issue (3): 264-269.

Previous Articles     Next Articles

The Expression of the Solution of the First Kind Ⅲ-Posed Operator Equation

Yan Yubin1, Li Chunli2   

  1. 1. Luliang Teachers'college, 033000;
    2. Harbin Normal University, 150001
  • Received:1996-09-20 Revised:1997-01-11 Online:1998-09-26 Published:1998-09-26

Abstract: In this paper, we discuss the solution of the first kind ill-posed operator equation when A-1 hasn't been defined and A-1 isn't of single value. We give the necessary and sufficient condition to the existence and uniqueness for the solution of the equation in L2. When the solution exist, we give the expression of the solution. When the equation has more than one solution, we give the minimum norm solution. Also, we obtain the expression of the approximate solution and the error estimate.

Key words: Operator equation, Minimum norm solution, Approximate solution

Trendmd