【摘要】 文章研究以第二类Chebyshev多项式零点为插值结点组的Grünwald插值多项式Gn(f,X;x)对|x|的逼近度,并证明其不可改进.更多还原

【Abstract】 This paper is to study the approximation rate of the Grünwald interpolation polynomials to |x| on the zeros of Chebyshev polynomials of the second kind,and prove that the result can’t be improved.更多还原