摘要
Weusetheincrementalunknownsmethodinconjunctionwiththeiterativemethodstoapproximatethesolutionofthenonsymmetricandpositive-definitelinearsystemsgeneratedfromamultileveldiscretizationofthree-dimensionalconvection-diffusionequations.Theconditionnumbersofincrementalunknownsmatricesassociatedwiththeconvection-diffusionequationsandthenumberofiterationsneededtoattainanacceptableaccuracyareestimated.Numericalresultsarepresentedwithtwo-levelapproximations,whichdemonstratethattheincrementalunknownsmethodwhencombinedwithsomeiter-ativemethodsisveryeffcient.
出版日期
2007年01月11日（中国期刊网平台首次上网日期，不代表论文的发表时间）
