arXiv subjects

Mohammad Akbari Tootkaboni

Publications and source records attributed to Mohammad Akbari Tootkaboni.

2 recordsLinked to original sources

arXiv2025

An Algebraic Proof of the Polynomial Version of van der Waerden's Theorem

The polynomial version of van der Waerden's theorem, proved using dynamical systems by V. Bergelson and A. Leibman in 1996, \cite{Bergelson1996}, significantly highlighted the role of dynamical systems in addressing problems related to monochromatic configurations within algebraic structures. In this paper, by introducing symbolic polynomials, we aim to provide an alternative proof of the polynomial version of van der Waerden's theorem relying solely on Stone-Čech compactification of an infinite discrete semigroup.

math.CO↗

arXiv2025

Polynomial extension of Van der Waerden's Theorem near zero

Let $S$ be a dense subring of the real numbers. In this paper we prove a polynomial version of Van der Waerden's theorem near zero. In fact, we prove that if $p_1,\ldots,p_m \in \mathbb{Z}[x]$ are polynomials such that $p_i(0) = 0$ and there exists $δ> 0$ such that $p_i(x) > 0$ for every $x \in (0,δ)$ and for every $i=1,\ldots , m$. Then for any finite partition $\mathcal{C}$ of $ S\cap(0,1) $ and every sequence $f:\mathbb{N}\to S\cap(0,1)$ satisfying $\sum_{n=1}^\infty f(n)<\infty$, there exist a cell $C \in \mathcal{C}$, an element $a \in S$, and $F \in P_f(\mathbb{N})$ such that \[ \{ a + p_i(\sum_{t \in F} f(t)) : i = 1,2,\ldots,m \} \subseteq C. \]

math.CO↗