A SIMPLE GENERALIZED CONSTRUCTION OF RESOLVABLE BALANCED INCOMPLETE BLOCK DESIGNS WITH PRIME BLOCK SIZES

2021 ◽  
Vol 10 (6) ◽  
pp. 2767-2784
Author(s):  
A.J. Saka ◽  
R.A. Adetona ◽  
T.G. Jaiyéolá

This paper presents a Simple Generalized Construction of Resolvable Balanced Incomplete Block Designs whose parameter combination is of the form $v=k^2, ~r=k+1, ~\lambda=k^0=1$, where $k$ is prime. The design construction was achieved by using the cyclic subgroup of the symmetric group $S_k$ whose generator is one of the permutations of the $2$-permutation generating set of the Dihedral group $D_k$ and $2$-permutation generating set of the presentation of $S_k$. The method is efficient, sufficient and also mitigate against the tediousness encountered in other methods of construction when $v$ is large.

Author(s):  
Sulochana Beeraka ◽  
Re. Victor Babu Bejjam

In this paper, a study of second order slope rotatable designs under intra-class correlation error structure using two suitably chosen dissimilar incomplete block designs like balanced incomplete block designs and symmetrical unequal block arrangements with two unequal block sizes are suggested. Further, we study the variance of the estimated slopes for different values of the intra-class correlation coefficient (ρ) and the distance from the centre (d) for v factors are suggested. Some illustrative examples are also suggested.


1984 ◽  
Vol 33 (3-4) ◽  
pp. 187-190 ◽  
Author(s):  
G. G . Agarwal ◽  
Sanjay Kumar

In this paper variance balanced incomplete block designs have been constructed in unequal block sizes for situations when suitable BIB designs do not exist for a given number of treatments.


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