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The relationship between a polynomial's zeros and factors is well known. If a is a zero of f(x) then (x-a) is a factor of f(x). In this paper, we generalize this idea to polynomials of two variables and with real coefficients. We consider…

Algebraic Geometry · Mathematics 2012-10-22 Micki Balaich , Mihail Cocos

We investigate the problem of determining the zeros of quaternionic polynomials using matrix method. In a recent paper, Dar et al. \cite{RD} proved that the zeros of a quaternionic polynomial and the left eigenvalues of the corresponding…

Complex Variables · Mathematics 2024-12-19 N. A. Rather , Wani Naseer

We study the vanishing sets of slice regular polynomials in several quaternionic variables. We obtain a geometric description of the vanishing sets in two variables, which leads to a new version of the Strong Hilbert Nullstellensatz in the…

Complex Variables · Mathematics 2023-11-10 Anna Gori , Giulia Sarfatti , Fabio Vlacci

A new class of regular quaternionic functions, defined by power series in a natural fashion, has been introduced in recent years. Several results of the theory recall the classical complex analysis, whereas other results reflect the…

Complex Variables · Mathematics 2011-02-15 G. Gentili , C. Stoppato

To study the zeros of octonionic polynomials, we generalize the well-known Enestrom-Kakeya Theorem to the case of octonions. In this paper, we first deal with octonionic polynomials with nonnegative and monotonic coefficients, and prove…

Algebraic Geometry · Mathematics 2026-02-19 Ting Yang , Xinyuan Dou

We study convexity properties of the zeros of some special functions that follow from the convexity theorem of Sturm. We prove results on the intervals of convexity for the zeros of Laguerre, Jacobi and ultraspherical polynomials, as well…

Classical Analysis and ODEs · Mathematics 2015-05-13 K Jordaan , F Tookos

Two theorems on the asymptotic distribution of zeros of sequences of analytic functions are proved. First one relates the asymptotic behavior of zeros to the asymptotic behavior of coefficients. Second theorem establishes a relation between…

Complex Variables · Mathematics 2022-09-27 Alexandre Eremenko

In this research, we study zeroes of weakly slice regular functions within the framework of several quaternionic variables, specifically focusing on non-axially symmetric domains. Our recent work introduces path-slice stem functions, along…

Complex Variables · Mathematics 2025-01-16 Xinyuan Dou , Ming Jin , Guangbin Ren , Ting Yang

In this paper, we are concerned with the problem of locating the zeros of polynomials of a quaternionic variable with quaternionic coefficients. We derive some new Cauchy bounds for the zeros of a polynomial by virtue of maximum modulus…

Complex Variables · Mathematics 2025-02-25 N. A. Rather , Tanveer Bhat

In this paper, we shall present an interesting and significant refinement of a classical result of Cauchy about the moduli of the zeros of a quaternionic polynomial. As an application of this result we shall obtain zero-free regions of…

Complex Variables · Mathematics 2025-02-18 Nisar Ahmad Rather , Danish Rashid Bhat , Tanveer Bhat

The literature on quaternionic polynomials and, in particular, on methods for determining and classifying their zero-sets, is fast developing and reveals a growing interest on this subject. In contrast, polynomials defined over the algebra…

Numerical Analysis · Mathematics 2018-02-20 M. Irene Falcão , Fernando Miranda , Ricardo Severino , M. Joana Soares

We establish the asymptotic zero distribution for polynomials generated by a four-term recurrence relation with varying recurrence coefficients having a particular limiting behavior. The proof is based on ratio asymptotics for these…

Classical Analysis and ODEs · Mathematics 2007-05-23 E. Coussement , J. Coussement , W. Van Assche

Locating the zeros of quaternionic polynomials is a fundamental problem with significant implications across scientific and engineering disciplines, yet the noncommutative nature of quaternion multiplication makes it fundamentally more…

Complex Variables · Mathematics 2026-04-14 Ovaisa Jan , Idrees Qasim

This paper studies the singularities of Cullen-regular functions of one quaternionic variable. The quaternionic Laurent series prove to be Cullen-regular. The singularities of Cullen-regular functions are thus classified as removable,…

Complex Variables · Mathematics 2010-04-14 Caterina Stoppato

For a power series which converges in some neighborhood of the origin in the complex plane, it turns out that the zeros of its partial sums---its sections---often behave in a controlled manner, producing intricate patterns as they converge…

Number Theory · Mathematics 2015-03-20 Antonio R. Vargas

Combinatorial properties of zeons have been applied to graph enumeration problems, graph colorings, routing problems in communication networks, partition-dependent stochastic integrals, and Boolean satisfiability. Power series of elementary…

Combinatorics · Mathematics 2021-09-07 G. Stacey Staples

A promising theory of quaternion-valued functions of one quaternionic variable, now called slice regular functions, has been introduced in 2006. The basic examples of slice regular functions are power series centered at 0 on their balls of…

Complex Variables · Mathematics 2012-09-11 Caterina Stoppato

Using a variety of matrix techniques, the problem of locating the left eigenvalues of the quaternion companion matrices are investigated in this paper. In a recent paper, Dar et al. [6], proved that the zeros of a quaternionic polynomial…

Complex Variables · Mathematics 2024-03-14 N. A. Rather , Naseer Ahmad Wani , Ishfaq Dar

The dominant theme of this thesis is that random matrix valued analytic functions, generalizing both random matrices and random analytic functions, for many purposes can (and perhaps should) be effectively studied in that level of…

Probability · Mathematics 2007-05-23 Manjunath Krishnapur

We consider a certain class of multiplicative functions $f: \mathbb N \rightarrow \mathbb C$ and study the distribution of zeros of Dirichlet polynomials $F_N(s)= \sum_{n\le N} f(n)n^{-s}$ corresponding to these functions. We prove that the…

Number Theory · Mathematics 2019-12-10 Arindam Roy , Akshaa Vatwani
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