4 papers
Weak Ziegler pairs of conic-line arrangements with ordinary singularities
Magdalena Lampa-Baczyńska, Daniel Wojcik
In the present note we focus on conic line arrangements in the plane with quasihomogeneous ordinary singularities from the perspective of weak Ziegler pairs. The foundations of thi…
On the Pappus arrangement of lines, forth and back and to the point
Magdalena Lampa-Baczyńska, Daniel Wójcik
The purpose of this paper is to study the famous Pappus configuration of lines and its dual arrangement. We show among others that by applying the Pappus Theorem to the dual ar…
New phenomena in the containment problem for simplicial arrangements
Marek Janasz, Magdalena Lampa-Baczyńska, Grzegorz Malara
In this note we consider two simplicial arrangements of lines and ideals of intersection points of these lines. There are intersection points in both cases and the number…
On the parameter space of Böröczky configurations
Łucja Farnik, Jakub Kabat, Magdalena Lampa-Baczyńska +1
Böröczky configurations of lines have been recently considered in connection with the problem of the containment between symbolic and ordinary powers of ideals. Here we describe pa…