Timeline for Smooth bijection between non-diffeomorphic smooth manifolds?
Current License: CC BY-SA 2.5
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Oct 13, 2010 at 14:26 | vote | accept | D. Savitt | ||
| Oct 13, 2010 at 14:07 | comment | added | Greg Kuperberg | It looks like I used the wrong word; I just didn't check the definition. What I meant is a "mock functor", a partial functor defined for objects and isomorphisms that has no reasonable behavior for general morphisms. And even compositions of isomorphisms are somewhat problematic. | |
| Oct 13, 2010 at 13:43 | comment | added | Todd Trimble | Perhaps a side issue, but I don't understand what you mean by pseudofunctor here. To me, a pseudofunctor is a type of map between 2-category or bicategory structures, but I am not aware of any interesting 2-category structure on the category of PL manifolds. | |
| Oct 13, 2010 at 8:32 | history | answered | Greg Kuperberg | CC BY-SA 2.5 |