FINITENESS THEOREMS FOR UNIVERSAL SUMS OF SQUARES OF ALMOST PRIMES

Source
Transactions of the American Mathematical Society
ISSN
00029947
Date Issued
2022-11-01
Author(s)
Banerjee, Soumyarup
Kane, Ben
DOI
Volume
375
Issue
11
Abstract
In this paper we study diagonal quadratic forms which are universal when restricted to almost prime inputs, establishing finiteness theorems akin to the Conway–Schneeberger 15 theorem.
Unpaywall
URI
Subjects
15-theorem | almost prime numbers | Sums of squares