Effective results for discriminant equations over finitely generated domains
Abstract
Let be an integral domain with quotient field of characteristic that is finitely generated as a -algebra. Denote by the discriminant of a polynomial . Further, given a finite etale algebra , we denote by the discriminant of over . For non-zero , we consider equations to be solved in monic polynomials of given degree having their zeros in a given finite extension field of , and where is an -order of , i.e., a subring of the integral closure of in that contains as well as a -basis of . In our book ``Discriminant Equations in Diophantine Number Theory, which will be published by Cambridge University Press we proved that if is effectively given in a well-defined sense and integrally closed, then up to natural notions of equivalence the above equations have only finitely many solutions, and that moreover, a full system of representatives for the equivalence classes can be determined effectively. In the present paper, we extend these results to integral domains that are not necessarily integrally closed.
Cite
@article{arxiv.1602.04730,
title = {Effective results for discriminant equations over finitely generated domains},
author = {Jan-Hendrik Evertse and Kálmán Györy},
journal= {arXiv preprint arXiv:1602.04730},
year = {2023}
}
Comments
20 pages