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Uniqueness of difference polynomials

open access: goldAIMS Mathematics, 2021
Let $ f(z) $ be a transcendental meromorphic function of finite order and $ c\in\Bbb{C} $ be a nonzero constant. For any $ n\in\Bbb{N}^{+} $, suppose that $ P(z, f) $ is a difference polynomial in $ f(z) $ such as $ P(z, f) = a_{n}f(z+nc)+a_{n-1}f(z+(n-1)
Xiaomei Zhang , Xiang Chen
doaj   +4 more sources

Entire functions that share a small function with their linear difference polynomial

open access: goldAIMS Mathematics, 2022
In this paper, we investigate the uniqueness of an entire function sharing a small function with its linear difference polynomial. Our results improve some results due to Li and Yi [11], Zhang, Chen and Huang [17], Zhang, Kang and Liao [18,19] etc.
Minghui Zhang   +2 more
doaj   +2 more sources

The root condition for polynomial of the second order and a spectral stability of finite‐difference schemes for Kuramoto‐Tsuzuki equation

open access: diamondMathematical Modelling and Analysis, 1998
This paper deals with a root condition for polynomial of the second order. We prove the root criterion for such polynomial with complex coefficients. The criterion coincides with well‐known Hurwitz criterion in the case of real coefficients.
A. Štikonas
doaj   +3 more sources

The root condition for polynomial of the second degree and a spectral analysis for three-level finite-difference schemes

open access: diamondLietuvos Matematikos Rinkinys, 1998
This paper deals with a root condition for polynomial of the second degree. We propose the root condition criterion for such polynomial wiith complex coefficients. The criterion coincide with well-known Hurwitz criterion in the case of real coefficients.
Artūras Štikonas
doaj   +5 more sources

Difference inequalities for polynomials in $L_0$

open access: diamondMatematychni Studii, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
É. A. Storozhenko
openalex   +3 more sources

Kolmogorov-Arnold-Moser Theory and Symmetries for a Polynomial Quadratic Second Order Difference Equation [PDF]

open access: goldMathematics, 2019
By using the Kolmogorov-Arnold-Moser (KAM) theory, we investigate the stability of two elliptic equilibrium points (zero equilibrium and negative equilibrium) of the difference equation t n + 1 = α t n + β t n 2 − t n ...
Tarek F. Ibrahim, Zehra Nurkanović
doaj   +2 more sources

Multivariate Difference Gon\v{c}arov Polynomials [PDF]

open access: green, 2020
17 ...
Ayomikun Adeniran   +2 more
openalex   +4 more sources

Multivariate Polynomial Values in Difference Sets [PDF]

open access: green, 2020
For $\ell\geq 2$ and $h\in \mathbb{Z}[x_1,\dots,x_{\ell}]$ of degree $k\geq 2$, we show that every set $A\subseteq \{1,2,\dots,N\}$ lacking nonzero differences in $h(\mathbb{Z}^{\ell})$ satisfies $|A|\ll_h Ne^{-c(\log N)^ }$, where $c=c(h)>0$, $ =[(k-1)^2+1]^{-1}$ if $\ell=2$, and $ =1/2$ if $\ell\geq 3$, provided $h(\mathbb{Z}^{\ell})$ contains ...
John R. Doyle, Alex Rice
openalex   +4 more sources

Alternatives to polynomial trend-corrected differences-in-differences models [PDF]

open access: greenApplied Economics Letters, 2018
A common problem with differences-in-differences (DD) estimates is the failure of the parallel-trend assumption.
Vincent Vandenberghe
openalex   +6 more sources

Uniqueness of entire functions whose difference polynomials share a polynomial with finite weight

open access: yesCubo, 2022
In this paper, we use the concept of weighted sharing of values to investigate the uniqueness results when two difference polynomials of entire functions share a nonzero polynomial with finite weight.
Goutam Haldar
doaj   +1 more source

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