Timeline for if Y-X is positive semi-definite, are the eigenvalues of Y bigger?
Current License: CC BY-SA 3.0
3 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Sep 18, 2012 at 19:29 | vote | accept | puzne | ||
| Sep 18, 2012 at 19:29 | comment | added | puzne | Yes, you are right, it's quite simple. Too bad I missed it.. While thinking of my question above I was sidetracked to think of a stronger related question: Suppose E is a ellipsoid contained inside a bigger ellipsoid F. Can E always be moved inside F until all their axes are parallel? A positive answer also gives a positive answer to my original question, but I don't see how to obtain an implication in the other direction. Do you happen to know the solution to the latter question as well? | |
| Sep 18, 2012 at 17:48 | history | answered | Sergei Ivanov | CC BY-SA 3.0 |