Timeline for Polyhedra collapses
Current License: CC BY-SA 4.0
4 events
| when toggle format | what | by | license | comment | |
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| Dec 27, 2020 at 19:33 | comment | added | Connor Malin | @LogicTheorist Lure gives a nice and short account here of the polyhedron category :math.ias.edu/~lurie/937notes/937Lecture2.pdf The main point being that a finite polyhedron is essentially the realization of a finite simplicial complex. It does not have a distinguished triangulation, but rather a class of them. | |
| Dec 23, 2020 at 8:24 | comment | added | LogicTheorist | Thank you very much. If I get it right a 2-polyhedron is in fact just a 2 dimensional simplicial complex and collapsing this 2-polyhedron $K$ with $K \times I$ means in fact that it is "expanded" to a 3 dimensional object and then collapses to a point? | |
| Dec 22, 2020 at 22:28 | history | edited | Joseph O'Rourke | CC BY-SA 4.0 |
added 268 characters in body
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| Dec 22, 2020 at 22:22 | history | answered | Joseph O'Rourke | CC BY-SA 4.0 |