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A Note on (r, λ)-Systems
Published online by Cambridge University Press: 20 November 2018
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An (r, λ)-system is an arrangement of v objects (or varieties) into subsets (or blocks) such that each variety appears in exactly r blocks and each pair of distinct varieties appears in exactly λ blocks. To avoid trivial designs, we assume that 1≤λ<r.
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- Copyright © Canadian Mathematical Society 1977