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SUMMARY:Bijective Link Between Chapoton's New Intervals and  Bipartite Pla
 nar Maps
DTSTART:20220412T133000Z
DTEND:20220412T143000Z
DTSTAMP:20260312T163800Z
UID:indico-event-7736@indico.math.cnrs.fr
CONTACT:cecile@ihes.fr
DESCRIPTION:Speakers: Wenjie Fang (LIGM)\n\nIn 2006\, Chapoton defined a c
 lass of Tamari intervals called "new intervals" in his enumeration of Tama
 ri intervals\, and he found that these new intervals are equi-enumerated w
 ith bipartite planar maps. We present here a direct bijection between thes
 e two classes of objects using a new object called "degree tree". Our bije
 ction also gives an intuitive proof of an unpublished equi-distribution re
 sult of some statistics on new intervals given by Chapoton and Fusy.\n\nht
 tps://indico.math.cnrs.fr/event/7736/
LOCATION:Centre de conférences Marilyn et James Simons (I.H.E.S.)
URL:https://indico.math.cnrs.fr/event/7736/
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