Skip to main content
MathOverflow
benblumsmith's user avatar
benblumsmith's user avatar
benblumsmith's user avatar
benblumsmith
  • Member for 13 years, 10 months
  • Last seen more than a month ago
Profile Activity
Stats
2,851
reputation
104k
reached
14
answers
29
questions
Communities
View all
Badges
View all badges
This user doesn’t have any gold badges yet.
18
silver badges
26
bronze badges
Top tags
View all tags
27
Score
17
Posts
40
Posts %
19
Score
7
Posts
16
Posts %
18
Score
8
Posts
19
Posts %
15
Score
8
Posts
19
Posts %
15
Score
4
Posts
9
Posts %
10
Score
8
Posts
19
Posts %
Top posts
View all questions and answers
question
21
Direct combinatorial proof that $2^{2k} = \sum \binom{2i}{i}\binom{2j}{j}$?
Apr 8, 2017
question
21
Using a known result without a specific reference
Nov 28, 2017
question
17
When can a finite subgroup of $GL(2n,\mathbb{R})$ be viewed as a subgroup of $GL(n,\mathbb{C})$?
Jul 8, 2016
answer
13
What generalizes symmetric polynomials to other finite groups?
Feb 15, 2020
question
12
How bad does a ring have to be for a failure of "going-in-between"?
Mar 13, 2017
question
11
Sums of subsets of $\mathbb{Z}/n\mathbb{Z}$
Jan 23, 2011
question
10
Explicit isomorphism for quaternion algebras over $\mathbb{Q}$?
Mar 10, 2014
question
10
Quotient of $S^3$ by Montgomery and Zippin's "wild involution"
Sep 9, 2016
question
9
How do small central extensions drop the dimension of a faithful representation?
Feb 25, 2015
answer
9
Extremely messy proofs
Aug 11, 2011
Top network posts
View all network posts
107
In categorical terms, why is there no canonical isomorphism from a finite dimensional vector space to its dual?
62
Original works of great mathematician Évariste Galois
49
Submodule of free module over a p.i.d. is free even when the module is not finitely generated?
44
Why is the cartesian product so categorically robust?
41
A function that is $L^p$ for all $p$ but is not $L^\infty$?