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DAM
2006
63views more  DAM 2006»
13 years 4 months ago
A novel use of t-packings to construct d-disjunct matrices
A t-packing is an ordered pair (V, P) where V is a v-set and P is a collection of k-subsets (blocks) of V such that each t-subset of V occurs in at most one block of P. If each t-...
Hung-Lin Fu, Frank K. Hwang
DM
2008
100views more  DM 2008»
13 years 4 months ago
Cyclic sequences of k-subsets with distinct consecutive unions
In this paper, we investigate cyclic sequences which contain as elements all k-subsets of {0, 1, . . . , n-1} exactly once such that the unions of any two consecutive k-subsets of...
Meinard Müller, Masakazu Jimbo