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JOURNALS // Izvestiya Vysshikh Uchebnykh Zavedenii. Matematika // Archive

Izv. Vyssh. Uchebn. Zaved. Mat., 2023 Number 2, Pages 57–65 (Mi ivm9854)

Sharpening of Erdös-Lax inequality for polynomials

N. A. Rather, Aijaz Bhat, M. Shafi

Department of Mathematics, University of Kashmir, Srinagar, 190006, India

Abstract: In this paper, we establish results concerning the upper bound estimates for the maximum modulus of the derivative of a polynomial on the unit disk. Our results are the complement to the work recently presented by Milovanovic and Mir [6]. Our results also generalizes the earlier proved results.

Keywords: polynomials, inequalities, complex domain.

UDC: 517

Received: 18.04.2022
Revised: 18.04.2022
Accepted: 29.06.2022

DOI: 10.26907/0021-3446-2023-2-57-65


 English version:
Russian Mathematics (Izvestiya VUZ. Matematika), 2023, 67:2, 65–72


© Steklov Math. Inst. of RAS, 2024