Journal of Combinatorial Mathematics and Combinatorial Computing. Vol 82, No. (2012), p.179-198
Suggested Citation
Chaiyasena A., Hurd S.P., Punnim N., Sarvate D.G. Group divisible designs with two association classes. Journal of Combinatorial Mathematics and Combinatorial Computing. Vol 82, No. (2012), p.179-198. Retrieved from: https://hdl.handle.net/20.500.14740/6986
We investigate group divisible designs with two association classes (known as GDDS, GADs or PBIBDs) with block size 3 and unequal size groups. We completely determine the necessary and sufficient conditions for groups with size vector (n, 1) for any n ≥ 3, and (n, 2, 1) for n ε {2, 3,..., 6}. We also have some general results for (n 1, n 2, n 3).
