id,summary,reporter,owner,description,type,status,priority,milestone,component,resolution,keywords,cc,merged,author,reviewer,upstream,work_issues,branch,commit,dependencies,stopgaps
24886,Implement one-point suspension and face split of polyhedron,jipilab,,"The one-point suspension of a vertex `v` of a polyhedron `P` of dimension `d` is obtained by placing `P` in a dimension `d+1` vector space where the last coordinate is 0, then placing a vertex ""over"" `v` and a vertex ""below"" `v` in the last coordinate and taking the convex hull.
One can do a similar construction for faces of polyhedron by placing the two vertices relative to the center of the face. This way we get the face split of `P`.
On the way, the `center` function also got modified in the case when it is only a vertex so that it returns the vertex. This was necessary to make the one-point suspension consistent.",enhancement,closed,major,sage-8.3,geometry,fixed,"days93, polytope, thursdaysbdx, IMA-PolyGeom",vdelecroix moritz mkoeppe chapoton,,Jean-Philippe Labbé,"Frédéric Chapoton, Vincent Delecroix",N/A,,2d78b8760d4e3ee5ffe1634bc763b3889818e314,2d78b8760d4e3ee5ffe1634bc763b3889818e314,,