Schoenberg type inequalities

Fuente: arXiv
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Main Author: Tang, Quanyu
Format: Preprint
Published: 2025
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_version_ 1866913800844738560
author Tang, Quanyu
author_facet Tang, Quanyu
contents In the geometry of polynomials, Schoenberg's conjecture, now a theorem, is a quadratic inequality between the zeros and critical points of a polynomial whose zeros have their centroid at the origin. We call its generalizations to other orders Schoenberg type inequalities. While inequalities of order four have been previously established, little is known about other orders. In this paper, we present a Schoenberg type inequality of order six, as well as a novel inequality of order one, representing the first known result in the odd-order case. These results partially answer two open problems posed by Kushel and Tyaglov. We also make a connection to Sendov's conjecture.
format Preprint
id arxiv_https___arxiv_org_abs_2504_09837
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Schoenberg type inequalities
Tang, Quanyu
Complex Variables
30C15, 30A10, 15A18
In the geometry of polynomials, Schoenberg's conjecture, now a theorem, is a quadratic inequality between the zeros and critical points of a polynomial whose zeros have their centroid at the origin. We call its generalizations to other orders Schoenberg type inequalities. While inequalities of order four have been previously established, little is known about other orders. In this paper, we present a Schoenberg type inequality of order six, as well as a novel inequality of order one, representing the first known result in the odd-order case. These results partially answer two open problems posed by Kushel and Tyaglov. We also make a connection to Sendov's conjecture.
title Schoenberg type inequalities
topic Complex Variables
30C15, 30A10, 15A18
url https://arxiv.org/abs/2504.09837