Cubature Formula and Interpolation on the Cubic Domain

(整期优先)网络出版时间:2009-02-12
/ 1
SeveralcubatureformulasonthecubicdomainsarederivedusingthediscreteFourieranalysisassociatedwithlatticetiling,asdevelopedin[10].ThemainresultsconsistofanewderivationoftheGaussiantypecubaturefortheproductChebyshevweightfunctionsandassociatedinterpolationpolynomialson[-1,1]~2,aswellasnewresultson[-1,1]~3.Inparticular,compactformulasforthefundamentalinterpolationpolynomialsarederived,basedonn~3/4+(?)(n~2)nodesofacubatureformulaon[-1,1]~3.