{ "id": "1407.6767", "version": "v3", "published": "2014-07-25T00:54:33.000Z", "updated": "2016-06-15T13:19:28.000Z", "title": "On stacked triangulated manifolds", "authors": [ "Basudeb Datta", "Satoshi Murai" ], "comment": "11 pages, minor changes in the organization of the paper, add information about recent results", "categories": [ "math.GT", "math.CO" ], "abstract": "We prove two results on stacked triangulated manifolds in this paper: (a) every stacked triangulation of a connected manifold with or without boundary is obtained from a simplex or the boundary of a simplex by certain combinatorial operations; (b) in dimension $d \\geq 4$, if $\\Delta$ is a tight connected closed homology $d$-manifold whose $i$th homology vanishes for $1 < i < d-1$, then $\\Delta$ is a stacked triangulation of a manifold.These results give affirmative answers to questions posed by Novik and Swartz and by Effenberger.", "revisions": [ { "version": "v2", "updated": "2014-07-30T13:26:31.000Z", "abstract": "We prove two results on stacked triangulated manifolds in this paper: (a) every stacked triangulation of a connected manifold with or without boundary is obtained from a simplex or the boundary of a simplex by certain combinatorial operations; (b) for a connected closed manifold $M$ of dimension $d \\geq 4$, if the $i$th homology group vanishes for $1