一类A-稳定对角隐式Runge-Kutta法的指数拟合  

Exponential Fitting on a Class of A-Stable Diagonally-implicit Runge-Kutta Method

作　　者：陈全发[1] 肖爱国[2] 

机构地区：[1]湘南学院数学系,湖南郴州423000 [2]湘潭大学数学与计算科学学院,湖南湘潭411105

出　　处：《吉林大学学报（理学版）》2008年第6期1061-1067,共7页Journal of Jilin University:Science Edition

基　　金：国家自然科学基金(批准号:10571147)

摘　　要：研究具有显式级的A-稳定3级对角隐式Runge-Kutta方法的单点指数拟合,构造了相应的A-稳定指数拟合公式,并讨论了最佳拟合频率的选取及步长控制策略.The one-point exponential-fitting of three-stage diagonally-implicit Runge-Kutta method with an A-stable and explicit stage was studied, a corresponding exponential-fitting formula of A-stable was constructed, choosing the best frequency and controlling the length were also discussed

关 键 词：A-稳定 对角隐式 Runge—Kutta方法 指数拟合 

分 类 号：O241.81[理学—计算数学]