Integral equations;
Newton method;
Nonlinear equations;
Nystrom approximation;
65J15;
45G10;
45B05;
D O I:
10.1080/01630563.2012.758637
中图分类号:
O29 [应用数学];
学科分类号:
070104 ;
摘要:
We consider the numerical approximation of a nonlinear integral operator equation by the Nystrom method. We propose a new way of applying this method which leads to a major improvement: We can theoretically attain any desired accuracy while for the classical Nystrom, the accuracy is limited by the quadrature error formula. The basic idea behind this new proposition is linearizing the nonlinear equation and discretizing the linearization process after, while the usual approach consists in the opposite.