Skip to main content
MathOverflow
Robin Chapman's user avatar
Robin Chapman's user avatar
Robin Chapman's user avatar
Robin Chapman
  • Member for 14 years, 10 months
Profile Activity
Stats
20,818
reputation
603k
reached
221
answers
3
questions
#158 overall
Communities
Badges
View all badges
2
gold badges
66
silver badges
81
bronze badges
Top tags
View all tags
347
Score
42
Posts
19
Posts %
216
Score
22
Posts
10
Posts %
135
Score
14
Posts
6
Posts %
126
Score
16
Posts
7
Posts %
110
Score
11
Posts
5
Posts %
96
Score
10
Posts
4
Posts %
Top posts
View all questions and answers
answer
93
Are the rationals homeomorphic to any power of the rationals?
May 26, 2010
answer
83
Is there a dense subset of the real plane with all pairwise distances rational?
Mar 23, 2010
answer
44
Largest number of vectors with pairwise negative dot product
Jul 11, 2010
answer
44
Function with range equal to whole reals on every open set
Jul 16, 2010
answer
38
Finite nonabelian groups of odd order
Jul 12, 2010
answer
35
Can Cantor set be the zero set of a continuous function?
May 9, 2010
answer
34
Shortest/Most elegant proof for $L(1,\chi)\neq 0$
May 24, 2010
answer
31
Is every field the field of fractions of an integral domain?
Nov 23, 2010
answer
31
Can the circle be characterized by the following property?
Apr 20, 2010
answer
31
Which number fields are monogenic? and related questions
Apr 15, 2010
Top network posts
View all network posts
90
Why is $e^{\pi \sqrt{163}}$ almost an integer?
89
Evaluating the integral $\int_0^\infty \frac{\sin x} x \,\mathrm dx = \frac \pi 2$?
72
Inverse of an invertible triangular matrix (either upper or lower) is triangular of the same kind
68
If $a \mid m$ and $(a + 1) \mid m$, prove $a(a + 1) | m$.
56
Are all algebraic integers with absolute value 1 roots of unity?