On the \((v,5,\lambda)\)-family of Bhaskar Rao designs
type: Item
instance of: scholarly article
title: On the \((v,5,\lambda)\)-family of Bhaskar Rao designs
zbMATH Open document ID: 0997.05020
DOI: 10.1016/S0378-3758(02)00220-3
author: Ghulam R. Chaudhry
author: Malcolm Greig
author: Jennifer Seberry
published in: Journal of Statistical Planning and Inference
publication date: 2002-09-18T00:00:00Z
review text: A Bhaskar Rao design BRD\((v,b,r,k,\lambda)\) is a \(v \times b\) matrix with \(0, \pm 1\) entries such that any two distinct rows are orthogonal and the matrix of the absolute values is the incidence matrix of a BIBD\((v,b,r,k,\lambda)\). In the paper under review, the authors consider BRDs with \(k=5\) and prove that the necessary divisibility conditions turn out to be sufficient for \(\lambda=4\), \(10\) and \(20\) with a few (possible or definite) exceptions.
Mathematics Subject Classification ID: 05B30
zbMATH DE Number: 1802357
zbMATH Keywords: Bhaskar Rao designs
reviewed by: Peter Boyvalenkov
MaRDI profile type: Publication
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full work available at URL: s0378-3758(02)00220-3
OpenAlex ID: W2065598564
description: scientific article; zbMATH DE number 1802357