Timeline for Intuition for Haar measure of random matrix
Current License: CC BY-SA 3.0
3 events
| when toggle format | what | by | license | comment | |
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| Nov 15, 2015 at 10:45 | comment | added | Vectornaut | @AlexanderChervov, note that you don't need to see the convex hull of $T = \{\sin(x + a) \colon a \in S^1\}$; you just need to find the unique constant function that can be written as a limit of elements of $T$. From the definition of the Riemann integral, I think you should be able to prove that $F(x) = \tfrac{1}{2\pi} \int_0^{2\pi} \sin(x + a)\;da$ is a limit of convex combinations of elements of $T$ in the uniform topology. As expected, $F(x) = 0$. | |
| Jan 16, 2012 at 19:53 | comment | added | Alexander Chervov | Closure - in what topology ? If I take $G=S^1$ $f=sin(x)$, shifts are $sin(x+a)$... how to see what is convex hull ? | |
| Jan 16, 2012 at 18:42 | history | answered | Neil Strickland | CC BY-SA 3.0 |