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  • P-ISSN3059-0604
  • E-ISSN3059-1309
  • KCI

SOME BOUNDS FOR THE ZEROS OF POLYNOMIALS

Some Bounds for the Zeros of Polynomials

한국수학교육학회지시리즈B:순수및응용수학 / Journal of the Korean Society of Mathematical Education Series B: Theoretical Mathematics and Pedagogical Mathematics, (P)3059-0604; (E)3059-1309
2023, v.30 no.1, pp.35-42
https://doi.org/https://doi.org/10.7468/jksmeb.2023.30.1.35
Mahnaz Shafi Chishti (School of Basic and Applied Sciences, Shobhit Institute of Engineering and Technology (Deemed to be University) Meerut)
Mohammad Ibrahim Mir (Department of Mathematics, University of Kashmir, South Campus)
Vipin Kumar Tyagi (School of Basic and Applied Sciences, Shobhit Institute of Engineering and Technology (Deemed to be University) Meerut)

Abstract

In this paper, we find a bound for all the zeros of a polynomial in terms of its coefficients similar to the bound given by Montel (1932) and Kuneyida (1916) as an improvement of Cauchy's classical theorem. In fact, we use a generalized version of Hölder's inequality for obtaining various interesting bounds for all the zeros of a polynomial as function of their coefficients.

keywords
polynomials, zeros, Holder's inequality, polygonal line

한국수학교육학회지시리즈B:순수및응용수학