Helly family
Summary
In combinatorics, a Helly family of order is a family of sets in which every minimal subfamily with an empty intersection has or fewer sets in it. Equivalently, every finite subfamily such that every -fold intersection is non-empty has non-empty total intersection. The -Helly property is the property of being a Helly family of order .
Further reading
- Wikipedia, page 670453, revision 1351706773, Helly family. adopted
About this page
| Tag | QMKYNQM68Q |
|---|---|
| URI | m2://QMKYNQM68Q |
| Aliases | helly-property |
| Kind | concept |
| Writing | W1 stated |
| Same as | |
| Changed | 4 November 2026 |
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- edge not_instance_of in: at least one non-example (0 of 1)
- edge specializes both: the more general notions and the special cases (0 of 1)
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