Linear sparse differential resultant formulas
Classical Analysis and ODEs
2013-06-04 v3
Abstract
Let be a system of linear nonhomogeneous ordinary differential polynomials in a set of differential indeterminates. Differential resultant formulas are presented to eliminate the differential indeterminates in from . These formulas are determinants of coefficient matrices of appropriate sets of derivatives of the differential polynomials in , or in a linear perturbation of . In particular, the formula is the determinant of a matrix having no zero columns if the system is "super essential". As an application, if the system is sparse generic, such formulas can be used to compute the differential resultant introduced by Li, Gao and Yuan in (Proceedings of the ISSAC'2011).
Cite
@article{arxiv.1112.3921,
title = {Linear sparse differential resultant formulas},
author = {Sonia L. Rueda},
journal= {arXiv preprint arXiv:1112.3921},
year = {2013}
}