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Results tagged with algebraic-combinatorics
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user 27829
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Constructions of $2-(v,3,3)$-designs
An elementary counting argument shows that $2$-$(v,3,3)$ exists only if $v$ is odd (or, more precisely, for $\lambda \equiv 3 \pmod{6}$ a $2$-$(v,3,\lambda)$ exists only if $v \equiv 1 \pmod{2}$). Thi …
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