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

Some Bounds for the Zeros of Polynomials

Journal of the Korean Society of Mathematical Education Series B: Theoretical Mathematics and Pedagogical Mathematics / 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
Mohammad Ibrahim Mir
Vipin Kumar Tyagi

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

Journal of the Korean Society of Mathematical Education Series B: Theoretical Mathematics and Pedagogical Mathematics