Timeline for How to make Schubert calculus into a Hopf (actually a PCH) algbera?
Current License: CC BY-SA 3.0
5 events
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| Apr 13, 2017 at 12:57 | history | edited | CommunityBot |
replaced http://mathoverflow.net/ with https://mathoverflow.net/
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| Jun 6, 2013 at 2:32 | comment | added | George | Another attempt to get a nice formula: $Grass(\infty,\infty) \times Grass(\infty,\infty) \to Grass(\infty, \infty)$ | |
| Jun 6, 2013 at 2:29 | vote | accept | George | ||
| Jun 6, 2013 at 2:27 | comment | added | George | Steve - thanks! Actually, I wanted something more elementary, in terms of intersections. And from your answer it is clear how to obtain it: in Schubert calculus multiplication is intersection, co-multiplication is the inverse image of $Grass(\infinity, \infinity) \times Grass(\infinity, \infinity) \to (\infinity, \infinity)$. Apparently, inverse image commutes with the intersection. | |
| Jun 6, 2013 at 2:16 | history | answered | Steven Sam | CC BY-SA 3.0 |