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math.AG2023
On the containment problem and sporadic simplicial line arrangements
Marek Janasz
In the paper we present two examples of inductively free sporadic simplicial arrangements of 31 lines that are non-isomorphic, which allow us to answer negatively questions on the…
math.AG2023★ 1 cited
On arrangements of smooth plane quartics and their bitangents
Marek Janasz, Piotr Pokora, Marcin Zieliński
In the present paper, we revisit the geometry of smooth plane quartics and their bitangents from several perspectives. First, we study in detail the weak combinatorics of arrangeme…