On the basic contrasts in PBIB designs
Latent roots and off-diagonal elements of the association matrix in PBIB designs and the number of associate classes
The application of Kronecker product of matrices to construction of certain PBB designs
In this paper it is shown that Kronecker product of the unit matrix and the incidence matrix of PBB design with m associate classes is the incidence matrix of PBB design with 2m+1 associate classes. Also association matrices, their parameters and the spectral expansion of C matrix of PBB design with 2m+1 associate classes is given.
Page 1