4 papers
Quasi-strongly regular digraphs constructed from transitive groups of degree
Vedrana Mikulić Crnković, Matea Zubović Žutolija
In this paper we present a method for constructing directed regular graphs from a transitive permutation group. This method is a generalization of a construction method for transit…
The existence of some directed strongly regular graphs on 54 and 108 vertices
Dean Crnković, Andrea Švob, Matea Zubović Žutolija
In this paper, we prove the existence of directed strongly regular graphs with parameters (108,11,3,2,1), (108,14,10,0,2), (108,22,12,6,4), (108,23,9,8,4), (108,25,15,8,5), (108,34…
New directed strongly regular graphs on 60 vertices
Dean Crnkovic, Andrea Svob, Matea Zubovic Zutolija
We prove the existence of directed strongly regular graphs with parameters (60,21,11,6,8), (60,22,12,8,8), (60,24,10,9,10), (60,25,17,8,12), (60,27,21,12,12) and (60,28,20,14,12).…
Transitive regular -analogs of graphs
Dean Crnkovic, Vedrana Mikulic Crnkovic, Andrea Svob +1
In 1976, Delsarte introduced the notion of -analogs of designs, and -analogs of graphs were introduced recently by M. Braun et al. In this paper, we extend that study by givi…