Non-linear Approximation in Cpa Spaces
Received:September 04, 1990  
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Author NameAffiliation
Wang Pinghua Dept. of Math.
Nanjing Normal University 
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Abstract:
      In this paper, we establish the following Jackson and Bernstein inequalities for Cpa space:(?)where σ=(α+ (1/p)-1),α > 0,0 < p < ∞. Moreover, these inequalities are used to give characterizations of the approximation spaces resulted from two approximations verpectively by splines with free knots and approximation by rational functions.
Citation:
DOI:10.3770/j.issn:1000-341X.1993.01.031
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