4 papers
Splitting the Matroid Determinant
Clara Briand, Leonie Kayser, Julian Weigert
The principal matroid determinant of a linear space has been introduced in recent work by Matsubara-Heo and Telen. In this paper, we give the compl…
Degenerating Discriminants
Viktoriia Borovik, Clara Briand
We study the behavior of projective dual varieties and discriminants under flat degenerations. For Gröbner degenerations, we show that the conormal variety admits a Gröbner degener…
Polar Degrees of Matroids
Clara Briand, Leonie Kayser, Julian Weigert
We show that the polar degrees of the coordinate-wise inverse of a linear subspace are given by the coefficients of a substitution of the reduced charact…
Benchmarks in Leipzig
Andrei Balakin, Miklós Bóna, Marie-Charlotte Brandenburg +45
Between April 1 and May 15, 2026, a group of 49 mathematicians compiled a dataset of research-level mathematics questions with known answers. Most of the work was done during the t…