4 papers
On connected subgraph arrangements
Lorenzo Giordani, Tilman Möller, Paul Mücksch +1
Recently, Cuntz and Kühne introduced a particular class of hyperplane arrangements stemming from a given graph , so called connected subgraph arrangements . In this note w…
Invariants in the cohomology of the complement of quaternionic reflection arrangements
Lorenzo Giordani, Gerhard Roehrle, Johannes Schmitt
Let be a hyperplane arrangement in a vector space and a group fixing . In case when is a complex reflection group and $\mathcal A=\m…
Hyperpolygonal arrangements
Lorenzo Giordani, Paul Mücksch, 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…
Cohomology Rings of Toric Wonderful Model
Lorenzo Giordani, Roberto Pagaria, Viola Siconolfi
We describe the cohomology ring of toric wonderful models for arbitrary building set, including the case of non well-connected ones. Our techniques are based on blowups of posets,…