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On Group Divisible Rotatable Designs
Calcutta Statistical Association Bulletin, 1976Adhikary, Basudeb, Sinha, Bikas Kumar
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A construction of group divisible designs
Journal of Statistical Planning and Inference, 1985The author shows that ''the existence of a resolvable BIB design with parameters \((v=\beta k,b,r,k,\lambda)\) which is not affine, implies the existence of a resolvable regular GD design with parameters: \((v^*=\beta k\), \(b^*=b-\beta\), \(r^*=r-1\), \(k^*=k\), \(\lambda^*_ 1=\lambda -1\), \(\lambda^*_ 2=\lambda\), \(m^*=\beta\), \(n^*=k)''\).
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Series of semiregular group divisible designs
Communications in Statistics - Theory and Methods, 1977Two series of semiregular group divisible designs are given. The first has v=sN + sN−1 , m=s + 1, k = v/s. The second has v = 6t + 6, m = 3, k = 2t + 2. Both series have λ1 =λ2−1. Designs in these series exist for v = 12, 18, 20, 24, 30, etc.
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A series of group divisible designs
Communications in Statistics - Theory and Methods, 1991Bose and Shrikhande C19763 proved that if D(m, k, ⋋) is a Baer subdesign of another SBIBD D1 (v1, k1 ⋋), k1>k, then it also contains a complementary subdesign D* which is symmetric GDD, D* (v*, k*; ⋋-1, ⋋; m, n). Utilising this, we give a necessary condition for a SBIBD D to be a Baer subdesign of D1 and also give the parameters.
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On Affine α‐Resolvability of a Singular Group Divisible Design
, 1981 S. M. Shah, D. G. Kabe
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Cancer statistics for African American/Black People 2022
Ca-A Cancer Journal for Clinicians, 2022Angela Giaquinto +2 more
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Symmetry of a group divisible design with r=λ1+1
, 2002 Tsutomu Shimata, Sanpei Kageyama
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New Digital Fingerprint Code Construction Scheme Using Group-Divisible Design
, 2006 In Man Kang +2 more
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