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
Seva
Meta User
Network Profile
Reputation
7,593
7.6k
5k
2.5k
2013
2014
2015
2016
Top tag
co.combinatorics
Next privilege
10,000 Rep.
Access moderator tools
Badges
1
25
73
Newest
Popular Question
Next badge
0/1
Excavator
Impact
~
112k
people reached
29 posts edited
2 helpful flags
328 votes cast
summary
answers
questions
tags
badges
favorites
bounties
reputation
all actions
91
Answers
newest
activity
votes
20
Number of vectors so that no two subset sums are equal
Feb 15 '14 at 13:44
15
When does $P(a−b)=0$ for $a≠b$ ensure $P(0)=0$? (Continued.)
May 17 at 7:04
15
Set of integers having finite intersection with the image of any polynomial of degree $\geq 2$
Feb 14 '15 at 21:08
15
How $a+b$ can grow when $a!b! \mid n!$
Jul 27 '13 at 15:11
14
Examples of eventual counterexamples
May 20 '11 at 6:37
13
Does small Perron-Frobenius eigenvalue imply small entries for integral matrices?
May 9 '14 at 8:23
13
Consecutive non-quadratic residues
Mar 24 '14 at 18:25
13
More open problems
Dec 8 '10 at 12:12
12
Paths in groups
May 16 '14 at 5:09
12
Sums of powers mod p
Apr 1 '12 at 18:43
12
How to recognise that the polynomial method might work
Oct 25 '10 at 15:44
11
List of integers without any arithmetic progression of n terms
Sep 24 '14 at 9:19
11
Can you cover the Boolean cube {0,1}^n with O(1) Hamming-balls each of radius n/2-c*sqrt(n)?
Jul 16 '12 at 10:21
11
Randomly contracting edges of a graph - expected number of vertices?
Jul 10 '11 at 19:56
10
Lower bound for exponential sums.
Dec 24 '12 at 8:15
10
Is the norm of a $0-1$ matrix (almost) attained on a $0-1$ vector?
Apr 29 '11 at 14:19
9
The Second Moment of a Sum of Floor Functions
Apr 22 '12 at 15:50
8
Freiman-isomorphic sets
Dec 10 '15 at 18:27
8
A question regarding simultaneous congruences
Apr 9 '12 at 17:19
7
Ordering subsets of the cyclic group to give distinct partial sums
Apr 16 '15 at 18:21
7
A problem related with 'Postage stamp problem'
Nov 10 '13 at 18:03
7
Minimum cardinality of a difference set in $R^n$
Sep 20 '11 at 7:23
7
How large can a non-sumset be?
Feb 13 '11 at 12:06
6
Minimal “sumset basis” in the discrete linear space $\mathbb F_2^n$
May 22 '15 at 11:27
6
Element with unique representation in A+B
Apr 2 '15 at 15:07
6
The maximal “nearly convex” function
Nov 26 '13 at 9:11
6
Additive set with small sum set and large difference set
Oct 13 '12 at 11:05
6
Number of integers coprime to l
May 30 '12 at 10:31
6
Spectral radius of a proper subgraph
Jul 9 '11 at 6:14
5
Relationship between quadratic residues modulo a prime and quadratic residues modulo a prime power
Nov 12 '15 at 18:36
MathOverflow works best with JavaScript enabled