Robin Chapman

Member for 14 years, 10 months

empslocal.ex.ac.uk/people/…
Sol 3

Network profile

Summary

Reputation

20,818

20.8k
20.2k
19.6k

2021
2022
2023
2024

Top tag

nt.number-theory

Next privilege

25,000 Rep.

Access to site analytics

Badges

2

66

81

Newest

Notable Question

Next badge

0/1

Excavator

Impact

~603k

people reached

56

helpful flags

656

votes cast

Answers

View all 221 answers

93

Are the rationals homeomorphic to any power of the rationals?

May 26, 2010

83

Is there a dense subset of the real plane with all pairwise distances rational?

Mar 23, 2010

44

Largest number of vectors with pairwise negative dot product

Jul 11, 2010

44

Function with range equal to whole reals on every open set

Jul 16, 2010

38

Finite nonabelian groups of odd order

Jul 12, 2010

Questions

18

Distinguishing congruence subgroups of the modular group

Apr 10, 2010

9

Transformation formulae for classical theta functions

Mar 26, 2010

7

Describing global sections of sheafifications

Jul 11, 2010

Tags

View all 144 tags

nt.number-theory

347

Score

42

posts

gr.group-theory

216

Score

22

posts

ac.commutative-algebra

135

Score

14

posts

gn.general-topology

135

Score

9

posts

mg.metric-geometry

131

Score

4

posts

Reputation

+10

Cardinality of the permutations of an infinite set

+10

Can curves induced by analytic maps wiggle infinitely across a line?

+10

Parametrization of O(3)

+10

Galois group of a product of irreducible polynomials

Badges

View all badges

2

gold badges

Populist

Apr 12, 2010
Fanatic

Jun 14, 2010

66

silver badges

Generalist

Jun 25, 2013
Taxonomist

Dec 4, 2020
Pundit

Sep 8, 2010

81

bronze badges

gr.group-theory

Jun 25, 2013
nt.number-theory

Jun 25, 2013
Explainer

Sep 30, 2014

Accounts

22.7k
2
62
80

20.8k
2
66
81

151
1

Active bounties (0)

This user has no active bounties

Votes cast

578

upvotes

78

downvotes

207

question votes

449

answer votes