Coverings pairs by quintuples: The case v congruent to 3 (mod 4) (Q1116950)
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scientific article; zbMATH DE number 4089567
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Coverings pairs by quintuples: The case v congruent to 3 (mod 4) |
scientific article; zbMATH DE number 4089567 |
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Coverings pairs by quintuples: The case v congruent to 3 (mod 4) (English)
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1988
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Let C(v) be the least number of quintuples in a v-set V with the property that each pair of distinct elements from V occurs in at least one quintuple. If \(v\equiv 3\) (mod 4), the authors show that \(C(v)=\lceil v\lceil (v-1)/4\rceil 5\rceil\) except for \(v=3,7,15\).
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coverings
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quintuple
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0.9030804
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0.8781686
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