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| Paper IPM / M / 774 |
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| Abstract: | |||||
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Gray and Ramsay [5], showed that any s ≥ (2t−1)2t, a
t-(v,k) trade of volume s exists. In this note we improve
their bound and show that for t ≥ 3, a given k, and s ≥ (t−2)2t+2t−1+2, there exists a simple t-(v,k) trade of
volume s.
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