Volume no :15, Issue no: 1, March (2016)

ZERO-FREE PRIMITIVE SQUARE REPRESENTATIONS BY SOME TERNARY QUADRATIC FORMS

Author's: Werner Hürlimann
Pages: [77] - [100]
Received Date: March 22, 2016
Submitted by:
DOI: http://dx.doi.org/10.18642/jantaa_7100121649

Abstract

The number of distinct zero-free primitive square representations by the ternary quadratic forms is expressed in terms of the number of primitive square representations by this form taking into account zeros, permutations and sign changes, and the number of distinct primitive square representations by certain binary quadratic forms. Asymptotic expressions for the cumulative numbers are also derived and the obtained formulas are illustrated at two typical cases.

Keywords

sum of squares primitive representation, ternary quadratic form, twisted Euler function, Bell ternary quadratic form, Cooper and Lam’s conjecture.