Class-uniformly resolvable group divisible structures. II: Frames
The electronic journal of combinatorics, Tome 11 (2004) no. 1
We consider Class-Uniformly Resolvable frames (CURFs), which are group divisible designs with partial resolution classes subject to the class-uniform condition. We derive the necessary conditions, including extremal bounds, build the foundation for general CURF constructions, including a frame variant of the $\lambda$ blow-up construction from part I. We also establish a PBD-closure result. For CURFs with blocks of size two and three we determine the existence of CURFs of type $g^u$, completely for $g=3$, with a small list of exceptions for $g=6$, asymptotically for $g=4,5$ and give some other infinite families.
@article{10_37236_1777,
author = {Peter Danziger and Brett Stevens},
title = {Class-uniformly resolvable group divisible structures. {II:} {Frames}},
journal = {The electronic journal of combinatorics},
year = {2004},
volume = {11},
number = {1},
doi = {10.37236/1777},
zbl = {1055.05011},
url = {http://geodesic.mathdoc.fr/articles/10.37236/1777/}
}
Peter Danziger; Brett Stevens. Class-uniformly resolvable group divisible structures. II: Frames. The electronic journal of combinatorics, Tome 11 (2004) no. 1. doi: 10.37236/1777
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