On Comonotone Approximation and Coconvex Approximation of Differentiable Functions
Received:June 29, 1987  
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Yu Xiangming 南京师范大学数学系 
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Abstract:
      In this paper, by using the result about the simultaneous polynomial approximation with Hermite interpolatory side conditions, we give the Jackson type estimates for the degree of comonotone approximation
Citation:
DOI:10.3770/j.issn:1000-341X.1989.03.024
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