3 papers
math.CO2026
On the dimension of the space generated by characteristic vectors of -Steiner systems
Qilong Li, Charlene Weiß, Yue Zhou
Fix a prime power and parameters , the corresponding Steiner system in the Grassmann scheme, or the -Steiner system, is a collection of $…
math.CO2025
The linear programming optimum for packings in classical association schemes
Kai-Uwe Schmidt, Charlene Weiß
Association schemes are central objects in algebraic combinatorics, with the classical schemes lying at their core. These classical association schemes essentially consist of the H…
math.CO2023
Nontrivial -designs in polar spaces exist for all
Charlene Weiß
A finite classical polar space of rank consists of the totally isotropic subspaces of a finite vector space over equipped with a nondegenerate form such that …