The Taylor resolution over a skew polynomial ring
Abstract
Let be a field and let be a monomial ideal in the polynomial ring . In her thesis, Taylor introduced a complex which provides a finite free resolution for as a -module. Later, Gemeda constructed a differential graded structure on the Taylor resolution. More recently, Avramov showed that this differential graded algebra admits divided powers. We generalize each of these results to monomial ideals in a skew polynomial ring . Under the hypothesis that the skew commuting parameters defining are roots of unity, we prove as an application that as varies among all ideals generated by a fixed number of monomials of degree at least two in , there is only a finite number of possibilities for the Poincar\'{e} series of over and for the isomorphism classes of the homotopy Lie algebra of in cohomological degree larger or equal to two.
Cite
@article{arxiv.2109.00111,
title = {The Taylor resolution over a skew polynomial ring},
author = {Luigi Ferraro and Desiree Martin and W. Frank Moore},
journal= {arXiv preprint arXiv:2109.00111},
year = {2021}
}