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The recurrence for the $k$-Fibonacci polynomials is usually iterated upwards to positive values of $n$ only. When the recurrence is iterated downwards to $n<0$, there are indices where the polynomials vanish identically. This fact does not…

Combinatorics · Mathematics 2026-02-25 S. R. Mane

We study the singular values (and Lyapunov exponents) for products of $N$ independent $n\times n$ random matrices with i.i.d. entries. Such matrix products have been extensively analyzed using free probability, which applies when $n\to…

Probability · Mathematics 2025-03-12 Boris Hanin , Tianze Jiang

The purpose of this work is to investigate root finding problems defined on (quasi-)metric spaces, and ranging in Euclidean spaces. The motivation for this line of inquiry stems from recent models in biology and phylogenetics, where…

Optimization and Control · Mathematics 2025-10-28 Titus Pinta

In this paper we study a class of bimodal cubic polynomials for which its critical points have the same $\omega$-limit set which is an invariant Cantor set. These maps have generalized Fibonacci combinatorics in terms of generalized…

Dynamical Systems · Mathematics 2024-12-10 Haoyang Ji , Wenxiu Ma

We introduce a new notion of rank for unitary representations of semisimple groups over a local field of characteristic zero. The theory is based on Kirillov's method of orbits for nilpotent groups over local fields. When the semisimple…

Representation Theory · Mathematics 2007-05-23 Hadi Salmasian

We show that if a real trigonometric polynomial has few real roots, then the trigonometric polynomial obtained by writing the coefficients in reverse order must have many real roots. This is used to show that a class of random trigonometric…

Probability · Mathematics 2008-12-10 J. Brian Conrey , David W. Farmer , Özlem Imamoglu

From analysis of a big variety of different knots we conclude that at q which is an root of unity, q^{2m}=1, HOMFLY polynomials in symmetric representations [r] satisfy recursion identity: H_{r+m} = H_r H_m for any A, which is a…

High Energy Physics - Theory · Physics 2015-07-07 Ya. Kononov , A. Morozov

In this paper, we prove the mirror symmetry conjecture between the Saito-Givental theory of exceptional unimodular singularities on Landau-Ginzburg B-side and the Fan-Jarvis-Ruan-Witten theory of their mirror partners on Landau-Ginzburg…

Algebraic Geometry · Mathematics 2014-12-19 Changzheng Li , Si Li , Kyoji Saito , Yefeng Shen

We establish a weak form of Ennola's conjecture. We achieve this by showing that two main assumptions Louboutin made in his previous work hold true. These assumptions are about Laurent polynomials over the rationals, and we prove them by…

Number Theory · Mathematics 2024-11-12 Jinwoo Choi , Dohyeong Kim

Gamma-positivity appears frequently in finite geometries, combinatorics and number theory. Motivated by the recent work of Sagan and Tirrell (Adv. Math., 374 (2020), 107387), we study the relationships between gamma-positivity and…

Combinatorics · Mathematics 2022-02-21 Shi-Mei Ma , Hao Qi , Jean Yeh , Yeong-Nan Yeh

We show that a monic polynomial in a discrete variable $n$, with coefficients depending on time variables $t_1, t_2,...$ is a $\tau$-function for the discrete Kadomtsev-Petviashvili hierarchy if and only if the motion of its zeros is…

Mathematical Physics · Physics 2009-11-11 Plamen Iliev

Due to Girard's (sometimes called Waring's) formula the sum of the $r-$th power of the zeros of every one variable polynomial of degree $N$, $P_{N}(x)$, can be given explicitly in terms of the coefficients of the monic ${\tilde P}_{N}(x)$…

Classical Analysis and ODEs · Mathematics 2016-09-07 Wolfdieter Lang

About two decades ago, Tsfasman and Boguslavsky conjectured a formula for the maximum number of common zeros that $r$ linearly independent homogeneous polynomials of degree $d$ in $m+1$ variables with coefficients in a finite field with $q$…

Algebraic Geometry · Mathematics 2018-01-30 Peter Beelen , Mrinmoy Datta , Sudhir R. Ghorpade

In [Jalowy, Kabluchko, Marynych, arXiv:2504.11593v1, 2025], the authors discuss a user-friendly approach to determine the limiting empirical zero distribution of a sequence of real-rooted polynomials, as the degree goes to $\infty$. In this…

Classical Analysis and ODEs · Mathematics 2025-09-16 Jonas Jalowy , Zakhar Kabluchko , Alexander Marynych

We prove the discrete analogue of Kakeya conjecture over $\mathbb{R}^n$. This result suggests that a (hypothetically) low dimensional Kakeya set cannot be constructed directly from discrete configurations. We also prove a generalization…

Combinatorics · Mathematics 2014-09-04 Ruixiang Zhang

A singular polynomial is one which is annihilated by all Dunkl operators for a certain parameter value. These polynomials were first studied by Dunkl, de Jeu and Opdam, (Trans. Amer. Math. Soc. 346 (1994), 237-256). This paper constructs a…

Quantum Algebra · Mathematics 2007-05-23 Charles F. Dunkl

We use the method of Bruinier--Raum to show that symmetric formal Fourier--Jacobi series, in the cases of norm-Euclidean imaginary quadratic fields, are Hermitian modular forms. Consequently, combining a theorem of Yifeng Liu, we deduce…

Number Theory · Mathematics 2021-02-17 Jiacheng Xia

A Lee-Yang polynomial $ p(z_{1},\ldots,z_{n}) $ is a polynomial that has no zeros in the polydisc $ \mathbb{D}^{n} $ and its inverse $ (\mathbb{C}\setminus\overline{\mathbb{D}})^{n} $. We show that any real-rooted exponential polynomial of…

Complex Variables · Mathematics 2024-10-10 Lior Alon , Alex Cohen , Cynthia Vinzant

We give a new proof of the following conjecture of Yoccoz: the sum of the logarithm of the conformal radius of fixed Siegel disks of monic quadratic polynomials and of the Brjuno function of their rotation number is bounded from above. In a…

Dynamical Systems · Mathematics 2007-05-23 Xavier Buff , Arnaud Cheritat

The probability that a zero of a random real polynomial of increasing degree is real tends to zero. However, passing from polynomials to Laurent polynomials yields a surprising result: the probability that a root is real tends not to zero,…

Algebraic Geometry · Mathematics 2025-09-03 Boris Kazarnovskii