Invariants in the cohomology of the complement of quaternionic reflection arrangements

Lorenzo Giordani, Gerhard Roehrle, Johannes Schmitt

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