TY - JOUR
T1 - Concerning difference families with block size four
AU - Check, Paul L.
AU - Colbourn, Charles J.
N1 - Funding Information:
Thanks are due to Paul Schellenberg for his helpful comments. Research of the second author was supported by NSERC Canada under grant number A0579.
PY - 1994/10/15
Y1 - 1994/10/15
N2 - A direct construction is given for a cyclic difference family of (4pn,4,1)-design for all p≡13 (mod24) and n≥0. This corrects in part a construction due to Mathon for prime orders, and extends the construction to prime powers.
AB - A direct construction is given for a cyclic difference family of (4pn,4,1)-design for all p≡13 (mod24) and n≥0. This corrects in part a construction due to Mathon for prime orders, and extends the construction to prime powers.
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U2 - 10.1016/0012-365X(94)90035-3
DO - 10.1016/0012-365X(94)90035-3
M3 - Article
AN - SCOPUS:0039907382
VL - 133
SP - 285
EP - 289
JO - Discrete Mathematics
JF - Discrete Mathematics
SN - 0012-365X
IS - 1-3
ER -