Timeline for On Dehn's infinitesimal rigidity theorem
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
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| Mar 4 at 14:22 | comment | added | M. Winter | Has this also been proven in higher dimensions? For example, if all 3-dimensional faces of a 4-polytope are infinitesimally rigid, is the polytope itself infinitesimally rigid? | |
| Feb 27, 2012 at 0:41 | history | edited | Joseph O'Rourke | CC BY-SA 3.0 |
added 73 characters in body
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| Feb 26, 2012 at 21:30 | comment | added | Igor Rivin | @Joseph: yes, exactly. | |
| Feb 26, 2012 at 20:37 | comment | added | Joseph O'Rourke | @Igor: Oh, I see. Thanks. So that is not a relevant consideration. For example, adding diagonals to a cube face both rigidifies it and makes it non-strictly convex along those new edges. | |
| Feb 26, 2012 at 20:23 | comment | added | Igor Rivin | It is easy to see what is meant by a non-strictly convex polyhedron: some edges have dihedral angle of $\pi.$ | |
| Feb 26, 2012 at 19:33 | history | answered | Joseph O'Rourke | CC BY-SA 3.0 |