Elliott

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1,674 reputation

2729

bio	website
	location	Stanford, CA
	age	22
visits	member for	2 years, 5 months
	seen	May 6 at 6:13
stats	profile views	400

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18 Questions

views newest activity votes

10

34

votes

4

answers

1

kviews

What's the probability that a sequence of coin flips never has twice as many heads as tails?

probability

sep 20 '11 at 19:00 Mike Spivey 25.9k

13

24

votes

8

answers

2

kviews

Why should we care about groups at all?

group-theory soft-question

aug 26 '11 at 7:11 Willem Noorduin 722

2

16

votes

2

answers

556

views

Obtaining irrational probabilities from fair coins?

probability

may 30 '11 at 23:41 Dan Brumleve 5,143

3

13

votes

3

answers

703

views

Cutting a unit square into smaller squares

linear-algebra combinatorics puzzle

jan 3 '11 at 4:53 Community♦ 1

2

11

votes

3

answers

462

views

Two seemingly unrelated puzzles have very similar solutions; what's the connection?

group-theory graph-theory puzzle

dec 23 '10 at 17:11 Elliott 1,674

3

11

votes

3

answers

434

views

Geometric argument that operators on $\mathbb{R}^3$ have an eigenvalue?

linear-algebra

dec 20 '10 at 18:57 mpiktas 933

10

votes

2

answers

403

views

Seating friends around a dinner table

combinatorics graph-theory contest-math

dec 20 '10 at 19:57 Qiaochu Yuan 117k

4

8

votes

5

answers

1

kviews

Motivating linear algebra for economics students?

linear-algebra education economics

apr 23 at 12:13 chisom 1

1

8

votes

3

answers

331

views

Representations of a cyclic group of order p over a field of characteristic p?

homework representation-theory

oct 11 '11 at 21:48 BenjaLim 16.7k

1

8

votes

3

answers

224

views

Why does $a^n - b^n$ never divide $a^n + b^n$?

elementary-number-theory

oct 11 '11 at 20:04 user10676 2,240

4

7

votes

3

answers

676

views

Are “$n$ by $n$ matrices with rank $k$” an affine algebraic variety?

algebraic-geometry

jun 28 '11 at 17:27 David Speyer 18.7k

1

6

votes

3

answers

243

views

When does $a + b$ divide $a^p + b^p$?

elementary-number-theory

oct 12 '11 at 2:14 Community♦ 1

5

votes

4

answers

1

kviews

Flip a coin until a head comes up. Why is “infinitely many tails” an event we need to consider?

probability probability-theory

may 25 '11 at 18:06 Pete L. Clark 44.5k

2

4

votes

3

answers

203

views

Qualms about the axioms of probability

probability-theory

may 25 '11 at 15:14 cic 103

4

votes

2

answers

250

views

Eigenvectors of real symmetric matrices?

linear-algebra

feb 26 '11 at 1:13 Qiaochu Yuan 117k

1

3

votes

1

answer

536

views

Why can we think of the second fundamental form as a Hessian matrix?

differential-geometry

feb 28 '11 at 2:05 Elliott 1,674

3

votes

2

answers

250

views

A distance preserving operator that's not linear?

linear-algebra

jan 10 '11 at 8:16 Chris Eagle 20.6k

1

2

votes

3

answers

264

views

Why do we define functions over $open$ subsets of $\mathbb{R}^n$?

analysis multivariable-calculus

jan 6 '11 at 10:17 sam 404

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