chromatic number 1design theory 1graph theory 1incidence-free sets 1kneser graphs 1projective planes 1
From the 1 of 3 linked papers with an AI index.
3 papers
math.CO2026
A note on the chromatic number of Kneser graphs on chambers of projective planes and incidence-free sets
Philipp Heering, Klaus Metsch, Vladislav Taranchuk +1
The paper provides an elementary proof of a perfect matching in the incidence graph of a symmetric design, links the chromatic number of Kneser graphs on projective‑plane chambers…
math.CO2025
A Completion Result for Partial Affine and Inversive Spaces
Cassie Grace, Klaus Metsch, Geertrui Van de Voorde
A partial affine plane of order is a point-line incidence structure with points and points on each line, such that every two lines meet in at most one point. In this…
math.CO2025
The largest sets of non-opposite chambers in spherical buildings of type
Jan De Beule, Philipp Heering, Sam Mattheus +1
The investigation into large families of non-opposite flags in finite spherical buildings has been a recent addition to a long line of research in extremal combinatorics, extending…