3 papers
math.CO2025
Symmetric 2-(35,17,8) designs with an automorphism of order 2
Sanja Rukavina, Vladimir D. Tonchev
The largest prime p that can be the order of an automorphism of a 2-(35,17,8) design is p=17, and all 2-(35,17,8) designs with an automorphism of order 17 were classified by Tonche…
math.CO2024
Construction of directed strongly regular graphs with nontrivial automorphisms
Marija MaksimoviÄ, Sanja Rukavina
In this paper we present a method for constructing directed strongly regular graphs with assumed action of an automorphism group. The application of this method leads to first exam…
cs.IT2024
Construction of extremal Type II -codes via doubling method
Sara Ban, Sanja Rukavina
Extremal Type II -codes are a class of self-dual -codes with Euclidean weights divisible by and the largest possible minimum Euclidean weight f…