Commun. Korean Math. Soc. 2018; 33(4): 1303-1308
Printed October 31, 2018
https://doi.org/10.4134/CKMS.c170466
Copyright © The Korean Mathematical Society.
Han Kyol Chong, Seon-Hong Kim
Jinjujeil High School, Sookmyung Women's University
In this paper, we consider both maximum modulus and minimum modulus on a circle of some polynomials. These give rise to interesting examples that are about moduli of Chebyshev polynomials and certain sums of polynomials on a circle. Moreover, we obtain some root locations of difference quotients of Chebyshev polynomials.
Keywords: modulus, polynomials, difference quotients, Chebyshev poly\-nomials
MSC numbers: Primary 30C10; Secondary 11B83
2000; 15(4): 697-706
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