Timeline for Simple homotopy type of interval bundles over surfaces
Current License: CC BY-SA 4.0
2 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Nov 9, 2018 at 22:15 | comment | added | mme | Triangulate the bundle so that projection is simplicial. Inducting downwards, use that there is a way to push in simplices on $\Delta \times I$ to deformation retract this onto $\Delta \times {1/2} \cup \partial \Delta \times I$, where the {1/2} should be the 0 section. | |
| Nov 9, 2018 at 21:56 | history | asked | Nicolas Boerger | CC BY-SA 4.0 |