Sven Wiesner

activity

20222026

collaborators

5 papers

math.CO2026

Boolean building set arrangements

Leonie Mühlherr, Sven Wiesner

In this article, we generalize the notion of connected subgraph arrangements, established by Cuntz and Kühne by allowing edges of cardinality greater than two, with a focus on loca…

math.CO2025

On Universal derivations for multiarrangements

Takuro Abe, Shota Maehara, Gerhard Roehrle +1

The study of universal derivations for arbitrary multiarrangements and multiplicity functions was initiated by Abe, Röhrle, Stump, and Yoshinaga in 2024 which focused on arrangemen…

math.CO2025

Extendability of the $B_{2}$ -arrangement

Torsten Hoge, Shota Maehara, Sven Wiesner

Let $(A, m)$ be a free multiarrangement, and let $E$ be an extension of $(A, m)$ . It is well known that if $A$ is the Coxeter arrangement of t…

math.CO2024

Free multiderivations of connected subgraph arrangements

Paul Mücksch, Gerhard Roehrle, Sven Wiesner

Cuntz and Kühne introduced the class of connected subgraph arrangements $A_{G}$ , depending on a graph $G$ , and classified all graphs $G$ such that the corresponding arrangement $A_{G}$ …

math.CO2022

Inductive Freeness of Ziegler's Canonical Multiderivations for Restrictions of Reflection Arrangements

Torsten Hoge, Gerhard Roehrle, Sven Wiesner

Let $A$ be a free hyperplane arrangement. In 1989, Ziegler showed that the restriction $A "$ of $A$ to any hyperplane endowed with the natural multiplicit…