Group Divisible Designs with Two Associate Classes and 𠜆 2 = 1

Nittiya Pabhapote and Narong Punnim

International Journal of Mathematics and Mathematical Sciences, 2011, vol. 2011, 1-10

Abstract:

The original classiffcation of PBIBDs defined group divisible designs GDD( 𠑣 = 𠑣 1 + 𠑣 2 + ⋯ + 𠑣 𠑔 , 𠑔 , 𠑘 , 𠜆 1 , 𠜆 2 ) with 𠜆 1 ≠0 . In this paper, we prove that the necessary conditions are suffcient for the existence of the group divisible designs with two groups of unequal sizes and block size three with 𠜆 2 = 1 .

Date: 2011
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jijmms:148580

DOI: 10.1155/2011/148580

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