Partition regularity of Pythagorean pairs

Fuente: arXiv
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Autori principali: Frantzikinakis, Nikos, Klurman, Oleksiy, Moreira, Joel
Natura: Preprint
Pubblicazione: 2023
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author Frantzikinakis, Nikos
Klurman, Oleksiy
Moreira, Joel
author_facet Frantzikinakis, Nikos
Klurman, Oleksiy
Moreira, Joel
contents We address a core partition regularity problem in Ramsey theory by proving that every finite coloring of the positive integers contains monochromatic Pythagorean pairs, i.e., $x,y\in \mathbb{N}$ such that $x^2\pm y^2=z^2$ for some $z\in \mathbb{N}$. We also show that partitions generated by level sets of multiplicative functions taking finitely many values always contain Pythagorean triples. Our proofs combine known Gowers uniformity properties of aperiodic multiplicative functions with a novel and rather flexible approach based on concentration estimates of multiplicative functions.
format Preprint
id arxiv_https___arxiv_org_abs_2309_10636
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Partition regularity of Pythagorean pairs
Frantzikinakis, Nikos
Klurman, Oleksiy
Moreira, Joel
Combinatorics
Number Theory
Primary:05D10, Secondary:11N37, 11B30, 37A44
We address a core partition regularity problem in Ramsey theory by proving that every finite coloring of the positive integers contains monochromatic Pythagorean pairs, i.e., $x,y\in \mathbb{N}$ such that $x^2\pm y^2=z^2$ for some $z\in \mathbb{N}$. We also show that partitions generated by level sets of multiplicative functions taking finitely many values always contain Pythagorean triples. Our proofs combine known Gowers uniformity properties of aperiodic multiplicative functions with a novel and rather flexible approach based on concentration estimates of multiplicative functions.
title Partition regularity of Pythagorean pairs
topic Combinatorics
Number Theory
Primary:05D10, Secondary:11N37, 11B30, 37A44
url https://arxiv.org/abs/2309.10636