Canonical Hilbert-Burch matrices for power series
Abstract
Sets of zero-dimensional ideals in the polynomial ring that share the same leading term ideal with respect to a given term ordering are known to be affine spaces called Gr\"obner cells. Conca-Valla and Constantinescu parametrize such Gr\"obner cells in terms of certain canonical Hilbert-Burch matrices for the lexicographical and degree-lexicographical term orderings, respectively. In this paper, we give a parametrization of -primary ideals in Gr\"obner cells which is compatible with the local structure of such ideals. More precisely, we extend previous results to the local setting by defining a notion of canonical Hilbert-Burch matrices of zero-dimensional ideals in the power series ring with a given leading term ideal with respect to a local term ordering.
Cite
@article{arxiv.2004.04776,
title = {Canonical Hilbert-Burch matrices for power series},
author = {Roser Homs and Anna-Lena Winz},
journal= {arXiv preprint arXiv:2004.04776},
year = {2021}
}
Comments
To appear in Journal of Algebra