摘要
The Filon-type quadrature is efficient for highly oscillatory functions - Fourier transforms. Based on Cox and Matthews' ETD schemes, the higher order single step exponential time differencing schemes are presented based on the Filon-type integration and the A-stability of the two-order Adams-Bashforth exponential time differencing scheme is considered. The effectiveness and accuracy of the schemes is tested.
基金
Projects(02JJY2006, 03JJY2001) supported by Natural Science Foundation of Hunan Province
project supported by JSPS Fellowship Research Program