Timeline for What are some triangulations of Grassmannians?
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Dec 2 at 22:54 | comment | added | Ali Caglayan | In dimensions k=1, 2, n-2, n-1, there is a homeomorphism between the realization of the MacPhersonian and the Grassmannian for (k, n) due to MacPherson. | |
| Mar 19, 2013 at 11:28 | comment | added | Marek Krčál | At the moment I tend to believe that the Schubert cell decomposition of $BSO(n)$ is not regular (the attaching map can be 2:1 on the codimenison 2 "faces" already, I guess). | |
| Mar 19, 2013 at 11:24 | comment | added | Marek Krčál | Thanks for your warning! Another popular-style reference is books.google.com/books?id=mXWr00HurmMC&pg=PA97 that I have read myself! (If I did not find the story boring then and remembered it, I would not get trapped now:)) | |
| Mar 19, 2013 at 2:12 | comment | added | S. Carnahan♦ | See also arxiv.org/abs/0709.1291 | |
| Mar 18, 2013 at 23:21 | comment | added | Matthew Kahle | This paper on realizations of MacPhersonians apparently has a fatal flaw, and was later retracted by Biss. | |
| Mar 18, 2013 at 21:48 | history | answered | Marek Krčál | CC BY-SA 3.0 |