The variety defined by the matrix of diagonals is -pure
arXiv:1902.02563
Abstract
We prove that the variety defined by the determinant of the matrix of diagonals is -pure for matrices of all sizes and in all positive prime characteristics. Moreover, we find a system of parameters for it.
To appear in the Springer volume "Women in Commutative Algebra--Proceedings of the 2019 WICA Workshop". 11 pages, comments are welcome