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
Pietro Majer
Meta User
Network Profile
Reputation
27,788
27.8k
20.5k
13.3k
2013
2014
2015
2016
Next tag badge:
measure-theory
92/100 score
28/20 answers
Badges
2
48
138
Newest
Revival
Next badge
35/100
Socratic
Impact
~
962k
people reached
142 posts edited
12 helpful flags
1,757 votes cast
summary
answers
questions
tags
badges
favorites
bounties
reputation
all actions
526
Answers
newest
activity
votes
82
Suggestions for good notation
Oct 20 '10 at 20:19
54
German mathematical terms like “Nullstellensatz”
Apr 19 '11 at 12:04
45
A topologist is not a mathematician - a small question
Aug 8 '14 at 13:26
37
Is the sum $\sum\limits_{j=0}^{k-1}(-1)^{j+1}(k-j)^{2k-2} \binom{2k+1}{j} \ge 0?$
Jun 23 '10 at 0:27
31
Why do we teach calculus students the derivative as a limit?
Sep 27 '10 at 12:10
28
For which maps $S^1\to S^1$ is the winding number defined?
Apr 12 '14 at 7:27
28
What is your favorite proof of Tychonoff's Theorem?
May 30 '10 at 7:25
26
Did ancient mathematicians know Euler's characteristic for convex polyhedra?
Jan 14 '14 at 19:28
25
Are there such numbers?
Nov 22 '12 at 10:44
23
Making N (set of all positive integers) a group
May 23 '10 at 22:24
23
Square of a continuous map
Mar 24 '12 at 6:38
22
Asymptotic approximation of $x^\alpha$ by entire functions
May 28 '10 at 17:45
21
Geometric proof of the Vandermonde determinant?
Jun 24 '10 at 0:00
21
A Hölder continuous function which does not belong to any Sobolev space
Sep 15 '10 at 8:06
20
Noncombinatorial proofs of Ramsey's Theorem?
Jun 24 '10 at 22:05
20
What if Current Foundations of Mathematics are Inconsistent?
Oct 3 '10 at 19:09
19
Solving a non linear equation
Sep 14 '14 at 23:08
19
How do professional mathematicians learn new things?
Aug 2 '10 at 7:21
18
What is the most useful non-existing object of your field?
Sep 29 '14 at 7:47
18
The vector field of a given flow
Sep 24 '10 at 23:31
17
Are these rings of functions isomorphic?
Sep 12 '13 at 14:38
17
Compact Embeddings of Sobolev Spaces: A Counterexample Showing The Rellich-Kondrachov Theorem Is Sharp
Nov 16 '11 at 7:24
17
How to compute \prod_{n=1}^{\infty} (1-p^{-n})
Aug 14 '12 at 20:07
16
is f a polynomial provided that it is “partially” smooth?
Apr 15 '12 at 22:06
15
ODE's without a Lipschitz condition
Dec 5 '12 at 18:55
15
Convergent subsequence of $\sin n$
Aug 8 '13 at 21:55
15
Examples of common false beliefs in mathematics
May 17 '10 at 9:58
14
Why is the Gamma function shifted from the factorial by 1?
May 26 '10 at 7:23
14
Uninteresting questions with interesting answers
Mar 25 '15 at 21:31
14
Pythagorean 5-tuples
Apr 24 '11 at 11:42
MathOverflow works best with JavaScript enabled