Non-canonical maximum cliques without a design structure in the block graphs of 2-designs
Sergey Goryainov, Elena V. Konstantinova·2023-11-02·via math.CO updates on arXiv.org
In this note we answer positively a question of Chris Godsil and Karen Meagher on the existence of a 2-design whose block graph has a non-canonical maximum clique without a design structure.