RESEARCH ARTICLE

Super-simple (5, 4)-GDDs of group type gu

  • Guangzhou CHEN , 1 ,
  • Kejun CHEN 1 ,
  • Yong ZHANG 1
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  • 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

Received date: 16 Oct 2012

Accepted date: 29 May 2014

Published date: 26 Aug 2014

Copyright

2014 Higher Education Press and Springer-Verlag Berlin Heidelberg

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.

Cite this article

Guangzhou CHEN , Kejun CHEN , Yong ZHANG . Super-simple (5, 4)-GDDs of group type gu[J]. Frontiers of Mathematics in China, 2014 , 9(5) : 1001 -1018 . DOI: 10.1007/s11464-014-0393-3

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