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Showing 2015 · math.COShow all
2 papers · 2 filters
math.CO2015★ 3 cited
On scattered convex geometries
Kira Adaricheva, Maurice Pouzet
A convex geometry is a closure space satisfying the anti-exchange axiom. For several types of algebraic convex geometries we describe when the collection of closed sets is order sc…
math.CO2015★ 2 cited
Semirigid systems of three equivalence relations
Christian Delhommé, Masahiro Miyakawa, Maurice Pouzet +2
A system of equivalence relations on a set is \emph{semirigid} if only the identity and constant functions preserve all members of . We construct semir…