TY - JOUR
T1 - The analysis of directed triple systems by refinement
AU - Colbourn, Marlene J.
AU - Colbourn, Charles J.
PY - 1982/1/1
Y1 - 1982/1/1
N2 - An invariant for deciding isomorphism of directed triple systems is developed by exploiting the asymmetry of blocks. This invariant can be computed efficiently, and for small systems usually succeeds in determining isomorphism. It is shown, however, that for all orders which are 1 (mod 3), there exist systems for which the invariant gives no information regarding isomorphism.
AB - An invariant for deciding isomorphism of directed triple systems is developed by exploiting the asymmetry of blocks. This invariant can be computed efficiently, and for small systems usually succeeds in determining isomorphism. It is shown, however, that for all orders which are 1 (mod 3), there exist systems for which the invariant gives no information regarding isomorphism.
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U2 - 10.1016/S0304-0208(08)73256-0
DO - 10.1016/S0304-0208(08)73256-0
M3 - Article
AN - SCOPUS:77956839173
SN - 0304-0208
VL - 65
SP - 97
EP - 103
JO - North-Holland Mathematics Studies
JF - North-Holland Mathematics Studies
IS - C
ER -