在结点处有固定值的Chebyshev逼近的简单证明

A Simple Proof of Theorems of Chebyshev Approximation by Families with Fixed Values at Nodes

本文运用经典 Chebyshev 逼近的结果给出了由史应光先生研究的在结点处有固定值的 Chebyshev 逼近定理的一个简单证明.

Theorems of Chebyshev approximation by linear alternating families with fixed values at nodes have been studied by Shi Yingguang.This paper gives a simple proof of them by making use of the classical Chebyshev approximation theory.