Bojan Kwitek
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Registered User
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Jan 28 |
awarded | ● Commentator |
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Jan 28 |
comment |
realcompact space Try Engelking's "General topology" (they are named "Hewitt spaces" therein). |
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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). |
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Jan 18 |
awarded | ● Enthusiast |
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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? |
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Jan 10 |
asked | Kadison-Singer problem in exotic Hilbert spaces |
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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 $X^*$? |
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Jan 4 |
awarded | ● Supporter |
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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. :) |
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Jan 4 |
asked | Non-super reflexive space |
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Dec 31 |
awarded | ● Disciplined |
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Dec 29 |
asked | Reflexive-saturated Banach spaces |
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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? |
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Dec 22 |
asked | Automatic continuity of the inverse map |
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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). |
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Dec 4 |
comment |
Quotients of Cantor cubes onto spaces Of course, it was a typo. Sorry for this. I want obviously $D$ homeomorphic to $S$. |
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Dec 4 |
revised |
Quotients of Cantor cubes onto spaces clarif |
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Dec 4 |
revised |
Quotients of Cantor cubes onto spaces typo |
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Dec 4 |
asked | Quotients of Cantor cubes onto spaces |
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Nov 29 |
asked | Algebras with countable chains only |
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Nov 29 |
revised |
Number of II${}_1$ factors dt |
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Nov 29 |
awarded | ● Editor |
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Nov 29 |
revised |
Number of II${}_1$ factors dr |
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Nov 29 |
revised |
Number of II${}_1$ factors dtr |
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Nov 29 |
asked | Number of II${}_1$ factors |
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Nov 29 |
asked | Embedding of $\ell_p$ into infinite direct sums |
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Nov 26 |
awarded | ● Student |
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Nov 26 |
comment |
Independent families and chains $\beta N$ has uncountable chains of clopen sets while it is separable (and hence c.c.c.), so I think there is no obvious relation. |
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Nov 26 |
awarded | ● Scholar |
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Nov 26 |
comment |
Independent families and chains Much appreciated. |
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Nov 26 |
asked | Independent families and chains |
