Candelabra systems and designs

H Mohácsy, DK Ray-Chaudhuri - Journal of statistical planning and …, 2002 - Elsevier
Combinatorial structures called candelabra systems can be used in recursive constructions
to build Steiner 3-designs. We introduce a new closure operation on natural numbers …

[HTML][HTML] Group divisible designs with block size four and group type gum1 for small g

G Ge, ACH Ling - Discrete mathematics, 2004 - Elsevier
In this paper, we continue to investigate the spectrum for {4}-GDDs of type gum1 with small
g. We show that, for each g∈{2, 4, 5, 12, 15} and each admissible pair (u, m), a {4}-GDD of …

On Group-Divisible Designs with Block Size Four and Group-Type g u m 1

G Ge, RS Rees - Designs, Codes and Cryptography, 2002 - Springer
We investigate the spectrum for {4}-GDDs of type gum 1. Wedetermine, for each even g, all
values of m for which a {4}-GDD of type gum 1 exists, for every 'fourth'value of u. We …

Group-divisible designs with block size four and group-type gum1 with m as large or as small as possible

G Ge, RS Rees, L Zhu - Journal of Combinatorial Theory, Series A, 2002 - Elsevier
Group-Divisible Designs with Block Size Four and Group-Type ... with m as Large or as
Small as Possible Page 1 357 ⁄ 0097-3165/02 $35.00 © 2002 Elsevier Science (USA) All …

Group divisible designs with block size four and group type

H Wei, G Ge - Designs, Codes and Cryptography, 2015 - Springer
Non-uniform group divisible designs have been studied by numerous researchers in the
past two decades due to their vital applications in the constructions for other types of …

[HTML][HTML] HGDDs with block size four

G Ge, R Wei - Discrete mathematics, 2004 - Elsevier
HGDDs with block size four - ScienceDirect Skip to main contentSkip to article Elsevier logo
Journals & Books Search RegisterSign in View PDF Download full issue Search ScienceDirect …

Two-dimensional balanced sampling plans excluding contiguous units

D Bryant, Y Chang, CA Rodger… - … in Statistics-Theory and …, 2002 - Taylor & Francis
ABSTRACT A balanced sampling plan excluding contiguous units (or BSEC for short) was
first introduced by Hedayat, Rao and Stufken in 1988. These designs can be used for survey …

[HTML][HTML] MGDD with block size 4 and its application to sampling designs

G Ge, J Wang, R Wei - Discrete mathematics, 2003 - Elsevier
MGDD with block size 4 and its application to sampling designs - ScienceDirect Skip to main
contentSkip to article Elsevier logo Journals & Books Search RegisterSign in View PDF …

[PDF][PDF] Modified group divisible designs with block size four

ACH Ling, CJ Colbourn - Discret. Math., 2000 - Citeseer
1 Introduction Page 1 Modi ed group divisible designs with block size four Alan CH Ling
Department of Computer Science University of Toronto Toronto, Ontario CANADA M5S 1A1 …

[PDF][PDF] Modified group divisible designs with block size 5 and λ= 1

RJR Abel, AM Assaf - Discrete mathematics, 2002 - core.ac.uk
Modified group divisible designs with block size 5 and = 1 Page 1 Discrete Mathematics 256
(2002) 1–22 www.elsevier.com/locate/disc Modified group divisible designs with block size 5 …