Design theory
Resolvable group divisible designs with block size four
Discrete Mathematics
On Group-Divisible Designs with Block Size Four and Group-Type gum1
Designs, Codes and Cryptography
Resolvable group divisible designs with block size four and group size six
Discrete Mathematics
Handbook of Combinatorial Designs, Second Edition (Discrete Mathematics and Its Applications)
Handbook of Combinatorial Designs, Second Edition (Discrete Mathematics and Its Applications)
Optimal ternary constant-weight codes of weight four and distance six
IEEE Transactions on Information Theory
A Complete Generalization of Clatworthy Group Divisible Designs
SIAM Journal on Discrete Mathematics
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In this paper, we present a systematic approach to some new direct constructions of block designs. Several examples of non-uniform group divisible designs, resolvable group divisible designs and optimal packings are illustrated to show the advantage of the construction method.