2 citations · 3 across the 7 of their papers we have counts for
10 papers
On the Chromatic Number of some generalized Kneser Graphs
Jozefien D'haeseleer, Klaus Metsch, Daniel Werner
We determine the chromatic number of the Kneser graph qΓ_{7,{3,4}} of flags of vectorial type {3, 4} of a rank 7 vector space over the finite field GF(q) for large q and describe t…
Hilton-Milner results in projective and affine spaces
Jozefien D'haeseleer
In this article, we analyse maximal sets of -spaces, in PG(n,q) and AG(n,q), , that pairwise meet in at least a -space. It is known that for both PG(n,q) and AG(n,q…
Neumaier graphs with few eigenvalues
Aida Abiad, Bart De Bruyn, Jozefien D'haeseleer +1
A Neumaier graph is a non-complete edge-regular graph containing a regular clique. In this paper we give some sufficient and necessary conditions for a Neumaier graph to be strongl…
On the chromatic number of two generalized Kneser graphs
Jozefien D'haeseleer, Klaus Metsch, Daniel Werner
We determine the chromatic number of some graphs of flags in buildings of type , namely of the Kneser graphs of flags of type in the vector spaces for $q\g…
On absolute points of correlations in PG
Jozefien D'haeseleer, Nicola Durante
Let be a -dimensional vector space over a field . Sesquilinear forms over have been largely studied when they are reflexive and hence give rise to a (pos…
Maximal sets of -spaces pairwise intersecting in at least a -space
Jozefien D'haeseleer, Giovanni Longobardi, Ago-Erik Riet +1
In this paper, we analyze the structure of maximal sets of -dimensional spaces in pairwise intersecting in at least a -dimensional space, for $3 \leq k…