bio | website | maths.leeds.ac.uk/~mdaws |
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location | Leeds, UK | |
age | ||
visits | member for | 5 years, 6 months |
seen | Mar 30 at 15:05 | |
stats | profile views | 3,137 |
Mar 19 |
awarded | Nice Answer |
Feb 26 |
comment |
Ultraweak topology on B(X): Is the map X\otimes X* -> B(X)* isometric?
@YemonChoi: I would look at $B(X,X^{**})$ instead of $B(X^*)$, then we're asking if the ball of $B(X,X)$ is weak$^*$-dense in the ball of $B(X,X^{**})$. The PLR shows that this is true for finite-rank operators; and the metric approximation property allows you to reduce from all operators to just the finite-rank ones. If $X$ is reflexive, then there is nothing to prove. What I don't see is how to combine these two rather different viewpoints...! |
Jan 13 |
awarded | Popular Question |
Oct 15 |
awarded | Yearling |
Sep 30 |
awarded | Explainer |
Aug 13 |
awarded | Nice Question |
Jul 7 |
accepted | “Minimal” group C*-algebra? |
Jul 3 |
revised |
Arveson's extension for normal completely positive maps
Showing that the final part is not correct. |
Jul 2 |
answered | Arveson's extension for normal completely positive maps |
Jul 2 |
awarded | Inquisitive |
Jul 2 |
awarded | Curious |
Jun 24 |
awarded | Nice Question |
Jun 24 |
asked | “Minimal” group C*-algebra? |
Jun 12 |
answered | Continuity of the product map |
Apr 15 |
revised |
What is “tilting” in the context of large deviations?
Removed backticks which were messing with the formatting |
Mar 29 |
awarded | Popular Question |
Mar 6 |
comment |
Can we expect $\left\||f|^{2}f-|g|^{2}g\right\|\leq C ||f-g||$ in the Banach algebra $A(\mathbb T)$ ?
Although, I must say that the whole $M=2\|f_0\|$ thing is very mysterious... |
Mar 6 |
comment |
Can we expect $\left\||f|^{2}f-|g|^{2}g\right\|\leq C ||f-g||$ in the Banach algebra $A(\mathbb T)$ ?
But that's not what the question asked: $f_0$ is fixed, this gives $M$ and then the OP specifically asks only for $f,g\in B_M$. If it was meant to be uniform, then why both with the $B_M$ condition? |
Mar 6 |
answered | Can we expect $\left\||f|^{2}f-|g|^{2}g\right\|\leq C ||f-g||$ in the Banach algebra $A(\mathbb T)$ ? |
Mar 5 |
comment |
Does anybody know if the Fourier algebra of SL(3,Z) has an approximate identity?
What do you mean by "somewhat technical partial converse"? Just Thm 1.11, namely some sort of tensoring against a group with a sufficient rich set of representations? |