Timeline for Norm numerical range
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Sep 1, 2017 at 14:06 | vote | accept | Astor | ||
| Sep 1, 2017 at 14:01 | answer | added | Federico Poloni | timeline score: 5 | |
| Sep 1, 2017 at 13:57 | comment | added | Astor | @Surb First, thanks for your answer! I am thinking of properties like convexity, closedness, infinite curvature in the boundary if eigenvalues are in it, numerical range of a sum included in the sum of numerical ranges. Let $0 \notin W_A(B)$, the spectrum of $B^{-1}C$ or of $CB^{-1}$ is in $\frac{W_A(B)}{W_A(C)}$. Let $B$ be hermitian positive definite, then the spectrum of $BC$ is in $W_A(C) W_A(B)$... | |
| Sep 1, 2017 at 13:52 | comment | added | Surb | "all the same properties" what are you referring to ? | |
| Sep 1, 2017 at 13:44 | history | asked | Astor | CC BY-SA 3.0 |