Existence and constructions of connected block designs with given vectors of treatment replications and block sizes
β Scribed by Jerzy K. Baksalary; Zenon Tabis
- Publisher
- Elsevier Science
- Year
- 1985
- Tongue
- English
- Weight
- 582 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0378-3758
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π SIMILAR VOLUMES
In this paper an inequality for the smallest positive eigenvalues of the \_C-matrix of a block design are derived. This inequality is a generalization of a result by CONSTANTINE (1982) to the caw of unequal block sizes. On the basis of the above result a certain E-optimality criterium of block desig
## Abstract We determine the distribution of 3βdesigns among the orbits of 4β and 5βelement subsets under the action of PSL(2,2^__n__^) on the projective line. Thus we give complete information on all KramerβMesner matrices for the action of PSL(2,2^__n__^) on 3βsets versus 4β and 5βsets. As a cons
We consider direct constructions due to R. J. R. Abel and