current community
chat
MathOverflow
MathOverflow Meta
your communities
Sign up
or
log in
to customize your list.
more stack exchange communities
company blog
Stack Exchange
Inbox
Reputation and Badges
sign up
log in
tour
help
Tour
Start here for a quick overview of the site
Help Center
Detailed answers to any questions you might have
Meta
Discuss the workings and policies of this site
About Us
Learn more about Stack Overflow the company
Business
Learn more about hiring developers or posting ads with us
MathOverflow
Questions
Tags
Users
Badges
Unanswered
Ask Question
Profile
Activity
Tomek Kania
Meta User
Network Profile
Reputation
3,407
3.4k
1.8k
248
2013
2014
2015
2016
Top tag
fa.functional-analysis
Next privilege
5,000 Rep.
Approve tag wiki edits
Badges
10
30
Newest
Yearling
Next badge
534/600
Electorate
Impact
~
44k
people reached
27 posts edited
8 helpful flags
1,326 votes cast
summary
answers
questions
tags
badges
favorites
bounties
reputation
all actions
47
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
About $C(K)$-spaces containing no copy of $l_{1}$
Jun 10 at 23:31
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
MathOverflow works best with JavaScript enabled