Johannes Schmitt

collaborators

2 papers

math.RT2025

Invariants in the cohomology of the complement of quaternionic reflection arrangements

Lorenzo Giordani, Gerhard Roehrle, Johannes Schmitt

Let $A$ be a hyperplane arrangement in a vector space $V$ and $G \leq G L (V)$ a group fixing $A$ . In case when $G$ is a complex reflection group and $\mathcal A=\m…

math.CO2025

Hyperpolygonal arrangements

Lorenzo Giordani, Paul MÃ¼cksch, Gerhard Roehrle +1

In 2024, Bellamy, Craw, Rayan, Schedler, and Weiss introduced a particular family of real hyperplane arrangements stemming from hyperpolygonal spaces associated with certain quiver…