Proceedings of the American Mathematical Society

Author(s): D. P. Dryanov; M. A. Qazi; Q. I. Rahman
Journal: Proc. Amer. Math. Soc. 131 (2003), 2741-2751.
MSC (2000): Primary 26C05, 26D05, 26D10
Posted: April 23, 2003
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Abstract: Extensions of two classical results about polynomials, one due to W. Markov and the other due to Duffin and Schaeffer, are obtained in this paper. An interesting result of S. Bernstein, which went unnoticed until it was rediscovered by P. Erdos,

years later, is also generalized. Our results are especially amenable to numerical calculations, and may, therefore, be of some practical importance.

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D. P. Dryanov
Affiliation: Département de Mathématiques et de Statistique, Université de Montréal, Montréal, Québec, Canada H3C 3J7
Email: drynovd@dms.umontreal.ca

M. A. Qazi
Affiliation: Department of Mathematics, Tuskegee University, Tuskegee, Alabama 36088
Email: qazima@aol.com

Q. I. Rahman
Affiliation: Département de Mathématiques et de Statistique, Université de Montréal, Montréal, Québec, Canada H3C 3J7
Email: rahmanqi@dms.umontreal.ca

DOI: 10.1090/S0002-9939-03-07110-7
PII: S 0002-9939(03)07110-7
Keywords: Polynomials, inequalities, coefficient estimates, growth
Received by editor(s): January 29, 2002
Posted: April 23, 2003
Communicated by: David Preiss
Copyright of article: Copyright 2003, American Mathematical Society

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