Timeline for Non-zero diagonal through permutation of rows
Current License: CC BY-SA 3.0
3 events
| when toggle format | what | by | license | comment | |
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| May 6, 2011 at 22:55 | comment | added | Gerry Myerson | @darij, I'd rather say it can be proved using Hall's Marriage Theorem, or any of a number of other theorems equivalent to Hall's, including one, by Konig, that goes back at least 20 years before Hall, and was stated specifically in the context of matrices. | |
| May 6, 2011 at 19:38 | comment | added | darij grinberg | And it's called Hall's marriage theorem. | |
| May 6, 2011 at 7:29 | history | answered | Denis Serre | CC BY-SA 3.0 |