3 papers
math.AC2022
Ideals of submaximal minors of sparse symmetric matrices
Jiahe Deng, Andreas Kretschmer
We study algebraic and homological properties of the ideal of submaximal minors of a sparse generic symmetric matrix. This ideal is generated by all -minors of a symmetric $…
math.AG2022
The enumerative geometry of cubic hypersurfaces: point and line conditions
Mara Belotti, Alessandro Danelon, Claudia Fevola +1
In order to count the number of smooth cubic hypersurfaces tangent to a prescribed number of lines and passing through a given number of points, we construct a compactification of…
math.AG2020
The Chow ring of hyperkähler varieties of -type via Lefschetz actions
Andreas Kretschmer
We propose an explicit conjectural lift of the Neron-Severi Lie algebra of a hyperkähler variety of -type to the Chow ring of correspondences ${\rm CH}^\ast(X \times…