Finite sequences of integers expressible as sums of two squares

Fuente: arXiv
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Main Authors: Choudhry, Ajai, Maji, Bibekananda
Format: Preprint
Published: 2023
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author Choudhry, Ajai
Maji, Bibekananda
author_facet Choudhry, Ajai
Maji, Bibekananda
contents This paper is concerned with finite sequences of integers that may be written as sums of squares of two nonzero integers. We first find infinitely many integers $n$ such that $n, n+h$ and $n+k$ are all sums of two squares where $h$ and $k$ are two arbitrary integers, and as an immediate corollary obtain, in parametric terms, three consecutive integers that are sums of two squares. Similarly we obtain $n$ in parametric terms such that all the four integers $n, n+1, n+2, n+4$ are sums of two squares. We also find infinitely many integers $n$ such that all the five integers $n, n+1, n+2, n+4, n+5$ are sums of two squares, and finally, we find infinitely many arithmetic progressions, with common difference $4$, of five integers all of which are sums of two squares.
format Preprint
id arxiv_https___arxiv_org_abs_2310_13317
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Finite sequences of integers expressible as sums of two squares
Choudhry, Ajai
Maji, Bibekananda
Number Theory
Primary 11D09, Secondary 11E25
This paper is concerned with finite sequences of integers that may be written as sums of squares of two nonzero integers. We first find infinitely many integers $n$ such that $n, n+h$ and $n+k$ are all sums of two squares where $h$ and $k$ are two arbitrary integers, and as an immediate corollary obtain, in parametric terms, three consecutive integers that are sums of two squares. Similarly we obtain $n$ in parametric terms such that all the four integers $n, n+1, n+2, n+4$ are sums of two squares. We also find infinitely many integers $n$ such that all the five integers $n, n+1, n+2, n+4, n+5$ are sums of two squares, and finally, we find infinitely many arithmetic progressions, with common difference $4$, of five integers all of which are sums of two squares.
title Finite sequences of integers expressible as sums of two squares
topic Number Theory
Primary 11D09, Secondary 11E25
url https://arxiv.org/abs/2310.13317