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Matrix constructions of family (A) group divisible designs [PDF]

open access: possibleAustralas. J Comb., 2020
A new construction of (not necessarily symmetric) group divisible designs (GDD) with \(b= 4(r- \lambda_2)\) is described (\(b\) denotes the number of blocks of the design, and \(\lambda_2\) the number of blocks through two points in different point classes; \(r\) is the number of blocks through a point). GDDs with this property are called ``family (A)''
openaire   +1 more source

Group divisible designs with large block sizes

Designs, Codes and Cryptography, 2017
In this paper, the author showed that there is a \((k,\lambda_k)\)-GDD, group divisible design, of type \((q^{l+1}-q^l)^{(q^{n-l}-1)/(q-1)}\), for any prime power \(q\) and any integers \(k\), \(n\) with \(3\leq k \leq n\), where \(\lambda_k=\frac{\prod_{i=3}^{k-1}(q^n-q^{l+i-1})}{(k-2)!}\) and \(k+l\leq n+1\).
openaire   +2 more sources

On Group Divisible Rotatable Designs

Calcutta Statistical Association Bulletin, 1976
Adhikary, Basudeb, Sinha, Bikas Kumar
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On Generalised Group Divisible Designs

Calcutta Statistical Association Bulletin, 1973
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Group Divisible Designs with Block Size Four and Group Type for

Journal of Combinatorial Designs, 2014
Hengjia Wei, Gennian Ge
exaly  

Group divisible covering designs with block size four

Journal of Combinatorial Designs, 2018
Hengjia Wei, Gennian Ge
exaly  

Some new resolvable group divisible designs

Communications in Statistics - Theory and Methods, 2020
Shyam Saurabh, Kishore Sinha
exaly  

Group Divisible Designs with Variable Replications

Calcutta Statistical Association Bulletin, 1967
openaire   +2 more sources

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