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math.CO2005
Divisibility of countable metric spaces
Christian Delhomme, Claude Laflamme, Maurice Pouzet +1
Prompted by a recent question of G. Hjorth as to whether a bounded Urysohn space is indivisible, that is to say has the property that any partition into finitely many pieces has on…
cs.DM2005★ 4 cited
N-free extensions of posets.Note on a theorem of P.A.Grillet
Maurice Pouzet, Nejib Zaguia
Let be the poset obtained by adding a dummy vertex on each diagonal edge of the 's of a finite poset . We show that is -free. It follows th…