172 reputation
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visits member for 1 year, 10 months
seen Jan 29 '13 at 23:34

Jul
2
awarded  Curious
Jan
28
awarded  Commentator
Jan
28
comment realcompact space
Try Engelking's "General topology" (they are named "Hewitt spaces" therein).
Jan
27
comment Showing a Banach space is reflexive
Every reflexive space is weakly sequentially complete, $C(K)$ spaces contain copies of $c_0$ which is not WSC (and this property is hereditary).
Jan
18
awarded  Enthusiast
Jan
10
accepted Kadison-Singer problem in exotic Hilbert spaces
Jan
10
comment Question about getting Review services
Hisanobu Shinya, since you presumably claim your result is correct, why didn't you choose any of the leading journals?
Jan
10
asked Kadison-Singer problem in exotic Hilbert spaces
Jan
6
comment Non-super reflexive space
OK, thank you. I haven't spotted this paper. By the way, can we deduce from the fact $\ell_1$ is finitely representable in $X$ that $c_0$ is finitely representable in $X^*$?
Jan
4
awarded  Supporter
Jan
4
comment Non-super reflexive space
Dear Prof. Johnson. Thank you. I've been trying to find the papers with no success yet, but I'll try again. Let me ask then whether the answer to the second question is positive or negative. :)
Jan
4
accepted Non-super reflexive space
Jan
4
asked Non-super reflexive space
Dec
31
awarded  Disciplined
Dec
29
asked Reflexive-saturated Banach spaces
Dec
29
comment Ultrapowers of operators
Just out of curiosity, does the following hold for countably complete ultrafilters: $(X\oplus Y)_U \isom X_U \oplus Y_U$, $X,Y$ Banach spaces?
Dec
22
accepted Automatic continuity of the inverse map
Dec
22
asked Automatic continuity of the inverse map
Dec
5
comment Quotients of Cantor cubes onto spaces
This is very clever, thank you. By the way, do you think is there any name for the following property (?) of a compact space: $X$ has (?) if for every surjection $s\colon X\to X$ there is a copy $Y$ of $X$ such that $s|_Y$ is injective (a homeomorphism onto its image).
Dec
4
accepted Quotients of Cantor cubes onto spaces