论可微函数的共单调凸逼近ON COMONOTONE AND COCONVEX APPROXIMATION OF DIFFERENTIABLE FUNCTIONS
魏永兴
摘要(Abstract):
文中证明了有限区间上可微函效借助于代数多项式的共单调凸逼近的更为精确的Jackson型估计。
关键词(KeyWords): 单调凸函数;;可微函数;;共单调凸逼近;;代数多项式
基金项目(Foundation):
作者(Author): 魏永兴
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参考文献(References):
- 1 余祥明。论可微函数的共单调逼近和共凸逼近。数学研究与评论,1989,9(3) :437~441
- 2 Yu Xiangming. Degree of copositive Polynomial approximation. Chin Ann of Math, 1989, 10(5) : 409~415
- 3 Iliev G L. Exact estimates for Partially monotone approximation. Anal Math, 1978, 4:181~197
- 4 Newman D J. Efficient comonotone approximation. J Approx theory, 1979, 25: 189~192
- 5 Beatson R K, Laviatan D. On comonotone approximation. Canad Math Bull, 1983. 26: 220~224
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