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Strongly regular graphs with parameters (81,30,9,12) and a new partial geometry pg(5,5,2)
Dean Crnković, Andrea Švob, Vladimir D. Tonchev
Twelve new strongly regular graphs with parameters (81,30,9,12) are found as graphs invariant under certain subgroups of the automorphism groups of the two previously known graphs…
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…
New constructions of Deza digraphs
Dean Crnkovic, Hadi Kharaghani, Sho Suda +1
Deza digraphs were introduced in 2003 by Zhang and Wang as directed graph version of Deza graphs, that also generalize the notion of directed strongly regular graphs. In this paper…