Hostname: page-component-cd9895bd7-gvvz8 Total loading time: 0 Render date: 2024-12-26T00:56:08.705Z Has data issue: false hasContentIssue false

A property of Bernstein-Schoenberg spline operators

Published online by Cambridge University Press:  20 January 2009

T. N. T. Goodman
Affiliation:
Department of Mathematical Sciences, University of Dundee, Dundee DD1 4HN, Scotland, U.K.
A. Sharma
Affiliation:
Department of Mathematical Sciences, University of Dundee, Dundee DD1 4HN, Scotland, U.K.
Rights & Permissions [Opens in a new window]

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Let Bnf; x) denote the Bernstein polynomial of degree n on [0,1] for a function f(x) defined on this interval. Among the many properties of Bernstein polynomials, we recall in particular that if f(x) is convex in [0,1] then (i) Bn(f;x) is convex in [0,1] and (ii) Bn(f;x)≧Bn+1(f;x), (n = l,2,…). Recently these properties have been the subject of study for Bernstein polynomials over triangles [1].

Type
Article
Copyright
Copyright © Edinburgh Mathematical Society 1985

References

REFERENCES

1.Chang, G. and Davis, P. J., The convexity of Bernstein polynomials over triangles, J. Approx. Theory 40 (1984), 1128.CrossRefGoogle Scholar
2.Davis, P. J., Interpolation and Approximation (Dover, New York, 1975).Google Scholar
3.Freedman, D. and Passow, E., Degenerate Bernstein polynomials, J. Approx. Theory 39 (1983), 8992.CrossRefGoogle Scholar
4.Goodman, T. N. T. and Lee, S. L., Spline approximation operators of Bernstein-Schoenberg type in one and two variables, J. Approx. Theory 33 (1982), 248263.CrossRefGoogle Scholar
5.Lorentz, G. G., Bernstein polynomials (University of Toronto Press, Toronto, 1953).Google Scholar
6.Schoenberg, I. J., On spline functions, Inequalities: Proceedings of a Symposium (Shisha, O., Ed., Academic Press, New York, 1967), 255294.Google Scholar