Stability of Differential Correction for Rational Chebyshev Approximation

1980 ◽  
Vol 17 (5) ◽  
pp. 639-640 ◽  
Author(s):  
Charles B. Dunham
Keyword(s):  
Chebyshev Approximation ◽  
Differential Correction ◽  
Rational Chebyshev ◽  
Rational Chebyshev Approximation

Dependence of Best Rational Chebyshev Approximations on the Domain

1977 ◽  
Vol 20 (4) ◽  
pp. 451-454 ◽  
Author(s):  
Charles B. Dunham
Keyword(s):  
Sufficient Conditions ◽  
Chebyshev Approximation ◽  
Error Norm ◽  
Rational Chebyshev ◽  
Rational Chebyshev Approximation

Sufficient conditions are given for the error norm and coefficients of best rational Chebyshev approximation on a domain to depend continuously on the domain. Examples of discontinuity are given.

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