Sonia Balagopalan's user avatar
Sonia Balagopalan's user avatar
Sonia Balagopalan's user avatar
Sonia Balagopalan
  • Member for 14 years, 5 months
  • Last seen more than a month ago
  • Ireland
42 votes

Describe a topic in one sentence.

42 votes
Accepted

What's your favorite equation, formula, identity or inequality?

22 votes

Is there a high-concept explanation for why characteristic 2 is special?

20 votes
Accepted

Learning Topology

20 votes

How To Present Mathematics To Non-Mathematicians?

16 votes
Accepted

When is the sum of two quadratic residues modulo a prime again a quadratic residue?

11 votes

Is the dihedral group admissible?

10 votes

What introductory book on Graph Theory would you recommend?

10 votes
Accepted

A comprehensive overview of finite fields

9 votes

Interesting families of sparse graphs?

9 votes

Why do Groups and Abelian Groups feel so different?

7 votes

Least number of charts to describe a given manifold

6 votes

What is the first interesting theorem in (insert subject here)?

6 votes
Accepted

Who constructed the projective plane of order $4$ from $K_6$?

4 votes

Are there any books that take a 'theorems as problems' approach?

3 votes

Conjugacy classes in finite groups that remain conjugacy classes when restricted to proper subgroups

2 votes

Injective proof about sizes of conjugacy classes in S_n

2 votes

Examples of "folk theorems"

2 votes

Is it alright for STD error bars to be below zero?

1 vote

Does every finitely generated group have a maximal normal subgroup?

1 vote

Minimal number of blocks in a $(n,n/2,\lambda)$ block design

0 votes

Is there a hyperplane avoiding two independent sets?