Strongly regular graphs with parameters (81,30,9,12) and a new partial geometry (CROSBI ID 290574)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Crnković, Dean ; Švob, Andrea ; Tonchev, Vladimir
engleski
Strongly regular graphs with parameters (81,30,9,12) and a new partial geometry
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 that arise from 2-weight codes. One of these new graphs is geometric and yields a partial geometry with parameters pg(5, 5, 2) that is not isomorphic to the partial geometry discovered by J. H. van Lint and A. Schrijver in 1981.
strongly regular graph ; partial geometry ; automorphism group
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Podaci o izdanju
53
2021.
253-261
objavljeno
0925-9899
1572-9192
10.1007/s10801-021-01012-2