4 papers
New constructions of divisible design Cayley graphs
Dean Crnković, Andrea Švob
Divisible design graphs were introduced in 2011 by Haemers, Kharaghani and Meulenberg. Further, divisible design graphs which can be obtained as Cayley graphs were recently studied…
New symmetric 2-(176,50,14) designs
Dean Crnković, Andrea Švob
In this paper we construct two new symmetric designs with parameters 2-(176,50,14) as designs invariant under certain subgroups of the full automorphism group of the Higman design.…
Neighbour-Transitive Codes and Partial Spreads in Generalised Quadrangles
Dean Crnković, Daniel R. Hawtin, Andrea Ŝvob
A code in a generalised quadrangle is defined to be a subset of the vertex set of the point-line incidence graph of . The minimum dista…
On the PSU(4, 2)-invariant vertex-transitive strongly regular (216, 40, 4, 8) graph
Dean Crnković, Francesco Pavese, Andrea Švob
In 2018 the first, Rukavina and the third author constructed with the aid of a computer the first example of a strongly regular graph with parameters (216, 40, 4, 8) and proved…