The cd-index of fans and lattices

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dc.creatorKaru, Kalle
dc.date2004-10-24
dc.date2004-10-31
dc.date.accessioned2026-07-07T05:13:38Z
dc.date.available2026-07-07T05:13:38Z
dc.descriptionThe number of flags in a complete fan, or more generally in an Eulerian poset, is encoded in the cd-index. We prove non-negativity of the cd-index for complete fans, regular CW-spheres and Gorenstein* posets.
dc.descriptionThe difference between lattices and posets clarified. 19 pages
dc.identifierhttps://arxiv.org/abs/math/0410513
dc.identifierhttp://arxiv.org/abs/math/0410513
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/72983
dc.subjectAlgebraic Geometry
dc.subjectCombinatorics
dc.subject14M25; 06A07
dc.titleThe cd-index of fans and lattices
dc.typetext

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