6 papers
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…
Extremal ternary self-dual codes of length 36 and symmetric 2-(36,15,6) designs with an automorphism of order 2
Sanja Rukavina, Vladimir D. Tonchev
In this note we report the classification of all symmetric 2-(36,15,6) designs that admit an automorphism of order 2 and their incidence matrices generate an extremal ternary self-…
LDPC codes constructed from cubic symmetric graphs
Dean Crnkovic, Sanja Rukavina, Marina Simac
Low-density parity-check (LDPC) codes have been the subject of much interest due to the fact that they can perform near the Shannon limit. In this paper we present a construction o…
Self-orthogonal codes from equitable partitions of association schemes
Dean Crnkovic, Sanja Rukavina, Andrea Svob
We give a method of constructing self-orthogonal codes from equitable partitions of association schemes. By applying this method we construct self-orthogonal codes from some distan…
On some distance-regular graphs with many vertices
Dean Crnkovic, Sanja Rukavina, Andrea Svob
We construct distance-regular graphs, including strongly regular graphs, admitting a transitive action of the Chevalley groups and , the orthogonal group …
Classification of quasi-symmetric 2-(64,24,46) designs of Blokhuis-Haemers type
Dean Crnkovic, Bernardo Rodrigues, Sanja Rukavina +1
This paper completes the classification of quasi-symmetric 2- designs of Blokhuis-Haemers type supported by the dual code of the binary linear code span…