3 papers
math.AG2026
Computing -resultants via direct images
Friedemann Groh, Matthias Zach
We improve a previously known theoretic method to compute A-resultants for suitable monomial support sets due to Weyman to the extent that it becomes computationally feasible and e…
math.AG2025
Some computational aspects of spectral sequences in Äech cohomology
Matthias Zach
Sheaf cohomology or, more generally, higher direct images of coherent sheaves along proper morphisms are central to modern algebraic geometry. However, the computation of these obj…
math.AG2024
Some Lê-Greuel type formulae on stratified spaces
Matthias Zach
We extend the circle of ideas from a previous paper on hypersurfaces to functions with an isolated singularity in a stratified sens…