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
Will Jagy
Meta User
Network Profile
Reputation
16,366
top
3%
overall
16.4k
12.9k
9.5k
2013
2014
2015
2016
Top tag
nt.number-theory
Next privilege
20,000 Rep.
Access 'trusted user' tools
Badges
1
43
88
Newest
Nice Answer
Next badge
50/100
Socratic
Impact
~
537k
people reached
92 posts edited
86 helpful flags
109 votes cast
summary
answers
questions
tags
badges
favorites
bounties
reputation
all actions
313
Answers
newest
activity
votes
4
Lower bounds on the easier Waring problem
May 11 '11 at 20:06
4
What are the consequences of a polynomial time algorithm for finding out if a given number is expressible as the sum of two squares?
Apr 2 '11 at 20:37
4
Most efficient checking algorithm for Pell's Equation
Apr 1 '11 at 19:27
4
3 square theorem
Dec 30 '10 at 3:29
4
f(f(x))=exp(x)-1 and other functions “just in the middle” between linear and exponential
Dec 5 '10 at 23:59
4
Bolyai's construction
Nov 8 '10 at 1:58
4
Approximation by locally Lipschitz functions
Oct 26 '10 at 4:48
4
3 directions of infinity ?
Sep 22 '10 at 1:39
4
primes of the form $a^n+b^n$
Aug 11 '10 at 21:11
4
Mean curvature as an elliptic operator
Jul 12 '10 at 2:20
4
On Polynomials dividing Exponentials
Feb 27 '10 at 21:50
4
When is $n/\ln(n)$ close to an integer?
Jun 15 '10 at 2:05
4
Harmonic Functions
Jun 9 '10 at 18:44
4
representability of consecutive integers by a binary quadratic form
May 7 '10 at 20:51
4
Finding all roots of a polynomial
Apr 1 '10 at 4:08
3
From a (not positive definite) Gram matrix to a (Kac-Moody) Cartan matrix
Jun 6 '15 at 3:07
3
Parametric solutions of Pell's equation
Jan 27 '15 at 5:15
3
Every free abelian group is slender, why?
Nov 15 '14 at 18:47
3
Which lenses can be squared?
Dec 12 '13 at 0:19
3
Product of exponents of prime factorization
Oct 3 '13 at 22:15
3
Product of exponents of prime factorization
Oct 3 '13 at 7:35
3
Rational points on circular spirals
Sep 8 '13 at 1:07
3
“Ultracomposite” numbers
Aug 9 '13 at 21:20
3
Impossible Range for Minkowski-Like Sum of Squares
Aug 3 '13 at 1:01
3
sum of powers of divisors function
Jul 21 '13 at 4:33
3
Square Root Algorithm
Jul 8 '13 at 20:29
3
Realizing proper pure octonions as conjugates
Dec 26 '12 at 20:28
3
What fraction of n x n invertible integer matrices contain at least one unit?
Sep 15 '12 at 2:16
3
Solving PDE via Cellular Automata
Feb 5 '12 at 21:53
3
Extensions of the Koebe–Andreev–Thurston theorem to sphere packing?
Jan 13 '12 at 3:43
MathOverflow works best with JavaScript enabled