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Tomek Kania
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46
Answers
newest
activity
votes
16
Is there an editors checklist for mathematics?
Mar 7 '13 at 21:27
13
Do non-stable Banach spaces exist?
Mar 31 at 15:53
11
Must uncountable compact Hausdorff spaces have large discrete subsets?
Sep 9 '15 at 14:13
11
B(H) as a direct sum of a closed two sided ideal and a subalgebra
Mar 12 '13 at 0:48
11
Banach-Zarecki theorem - who was Zarecki?
Feb 12 '15 at 19:22
8
Decomposable Banach Spaces
Mar 8 at 13:42
8
Universal $C^*$-algebra with generators and relations
Dec 14 '13 at 12:11
8
Examples of theorems with proofs that have dramatically improved over time
Jun 23 '13 at 19:02
7
Weak* extreme points
Feb 21 at 14:53
7
States and left ideals
Nov 14 '15 at 17:38
7
Faithul map and (minimal) tensor product of $C^*$-algebras
Aug 2 '15 at 22:01
7
Images of $\{0,1\}^\kappa$
Mar 18 '15 at 13:54
7
Extension of bounded linear operators
Mar 12 '14 at 21:17
7
Calkin Algebra and the embedding
Dec 15 '13 at 12:21
6
Infinite topological direct sum of amenable Banach algebra
Sep 11 '15 at 19:46
6
Two-sided ideals of $B(H)$ are hereditary
Jan 19 '15 at 22:22
6
Banach space modulo a one-dimensional subspace =?
Dec 4 '14 at 19:25
6
Ultracoproducts and Cartesian products
Aug 20 '14 at 9:12
6
Uniqueness up to isometric isomorphism of predual of $(\sum_{\lambda\in\Lambda} H_\lambda)_{l_\infty}$ where $H_\lambda$ are Hilbert spaces
Aug 9 '13 at 17:13
6
Research-level mathematical bookstores
Jul 24 '13 at 9:08
5
Is the space of vectorial functions that are Dunford integrable complete?
Aug 11 '15 at 21:10
5
Predual of a Direct Sum of Banach Spaces
Jun 12 '14 at 22:23
5
Comparing cardinalities of the spectrum of two masas in $B(H)$
Feb 26 '15 at 19:58
5
Simple $Z^{*}$ algebra
Nov 29 '14 at 11:21
5
Reflexive subspaces of non-separable abstract $L_1$ spaces
Nov 28 '14 at 21:58
5
Mathematicians who made important contributions outside their own field?
Jul 5 '14 at 10:08
4
Separable von Neumann algebra
Mar 15 at 20:32
4
Complemented subspaces in the dual of James' space $J$
Feb 19 at 14:48
4
Banach spaces $X$ with $\ell_2(X)$ not isomorphic to $L_2([0,1],X)$
Dec 10 '15 at 14:33
4
Topological spaces $(X,\tau)$ where $|\text{Cont}(X,X)| = |X|$
Feb 12 '15 at 19:09
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