Skip to Main Content

Proceedings of the American Mathematical Society

Published by the American Mathematical Society since 1950, Proceedings of the American Mathematical Society is devoted to shorter research articles in all areas of pure and applied mathematics.

ISSN 1088-6826 (online) ISSN 0002-9939 (print)

The 2020 MCQ for Proceedings of the American Mathematical Society is 0.85.

What is MCQ? The Mathematical Citation Quotient (MCQ) measures journal impact by looking at citations over a five-year period. Subscribers to MathSciNet may click through for more detailed information.

 

Negative theorems on monotone approximation
HTML articles powered by AMS MathViewer

by John A. Roulier PDF
Proc. Amer. Math. Soc. 55 (1976), 37-43 Request permission

Abstract:

In this paper we show that for $f$ continuous on $[ - 1, + 1]$ and satisfying $(f({x_2}) - f({x_1}))/({x_2} - {x_1}) \geqq \delta > 0$, it is possible to have infinitely many of the polynomials of best uniform approximation to $f$ not increasing on $[ - 1, + 1]$.
References
Additional Information
  • © Copyright 1976 American Mathematical Society
  • Journal: Proc. Amer. Math. Soc. 55 (1976), 37-43
  • DOI: https://doi.org/10.1090/S0002-9939-1976-0393969-1
  • MathSciNet review: 0393969