User Oliver - MathOverflow

Oliver

Member for 14 years, 2 months
Last seen more than a month ago

math.uwaterloo.ca/~opecheni
Waterloo, ON, Canada

12 Questions

Score Activity Newest Views

24 votes

1 answer

4k views

What does the σ in σ-algebra stand for?

asked Aug 29, 2011 at 21:27

19 votes

4 answers

4k views

What are your favorite finite non-commutative rings?

asked Jun 7, 2010 at 14:48

17 votes

2 answers

2k views

Why should I believe the Singular Cardinal Hypothesis?

asked Jul 1, 2011 at 19:19

14 votes

3 answers

1k views

Biography of Felix Hausdorff

asked Mar 1, 2011 at 20:49

13 votes

1 answer

2k views

Can an infinite commutative ring have a finite (but nonzero) number of non-nilpotent zero-divisors?

asked Jul 11, 2010 at 20:48

12 votes

44 answers

5k views

Mathematical ideas named after places [closed]

asked May 11, 2011 at 14:40

11 votes

3 answers

2k views

What is so "plactic" about the plactic monoid?

asked Sep 24, 2011 at 1:49

9 votes

1 answer

378 views

Concrete description of an exceptional minuscule variety

asked Jul 20, 2017 at 3:11

6 votes

2 answers

1k views

Notation: Exponent of a group

asked Nov 1, 2010 at 0:26

6 votes

2 answers

1k views

Does the beth function have fixed points of arbitrarily large cofinality?

asked Mar 6, 2010 at 17:12

2 votes

2 answers

448 views

When forcing with a poset, why do we order the poset in the order that we do?

asked Mar 11, 2010 at 18:58

2 votes

0 answers

348 views

How much can we say about the number of nilpotents in a finite local commutative ring?

asked Jul 11, 2010 at 20:57