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Frontiers of Mathematics in China

ISSN 1673-3452

ISSN 1673-3576(Online)

CN 11-5739/O1

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2018 Impact Factor: 0.565

Front. Math. China    2014, Vol. 9 Issue (5) : 1001-1018    https://doi.org/10.1007/s11464-014-0393-3
RESEARCH ARTICLE
Super-simple (5, 4)-GDDs of group type gu
Guangzhou CHEN1(),Kejun CHEN1,Yong ZHANG1
1. College of Mathematics and Information Science, Henan Normal University, Xinxiang 453007, China
2. Department of Mathematics, Taizhou University, Taizhou 225300, China
3. School of Mathematical Sciences, Yancheng Teachers University, Yancheng 224002, China
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Abstract

In statistical planning of experiments, super-simple designs are the ones providing samples with maximum intersection as small as possible. Super-simple group divisible designs are useful in constructing other types of super-simple designs which can be applied to codes and designs. In this article, the existence of a super-simple (5, 4)-GDD of group type gu is investigated and it is shown that such a design exists if and only if u≥5, g(u - 2)≥12, and u(u - 1)g2 ≡ 0 (mod 5) with some possible exceptions.

Keywords Super-simple design      group divisible design (GDD)      balanced incomplete block design      orthogonal array      completely reducible     
Issue Date: 26 August 2014
 Cite this article:   
Guangzhou CHEN,Kejun CHEN,Yong ZHANG. Super-simple (5, 4)-GDDs of group type gu[J]. Front. Math. China, 2014, 9(5): 1001-1018.
 URL:  
https://academic.hep.com.cn/fmc/EN/10.1007/s11464-014-0393-3
https://academic.hep.com.cn/fmc/EN/Y2014/V9/I5/1001
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