Sameer Kailasa's user avatar
Sameer Kailasa's user avatar
Sameer Kailasa's user avatar
Sameer Kailasa
  • Member for 10 years, 2 months
  • Last seen more than a month ago
18 votes
1 answer
19k views

Operator norm of orthogonal projection

17 votes
3 answers
4k views

When does $(ab)^n = a^n b^n$ imply a group is abelian?

17 votes
3 answers
2k views

When is the automorphism group of the Cayley graph of $G$ just $G$?

14 votes
2 answers
310 views

Survivor distribution following a zombie outbreak

13 votes
1 answer
233 views

Limiting behavior of coins on a finite graph with flips activated by a full neighborhood

11 votes
1 answer
364 views

Fixed-point free action of $\mathbb{Z}/p\mathbb{Z}$ on a finite CW complex

9 votes
1 answer
2k views

Show $f$ is analytic if $f^8$ is analytic

9 votes
1 answer
861 views

Doob-style second moment martingale inequality

9 votes
3 answers
916 views

Convergence of sequence: $f(n+1) = f(n) + \frac{f(n)^2}{n(n+1)}$

8 votes
1 answer
449 views

Minimum product of degrees of generators of finite field extension

8 votes
3 answers
1k views

Finitely generated ideal in Boolean ring; how do we motivate the generator?

7 votes
2 answers
416 views

Groups of order $8n$ have at least five distinct conjugacy classes

7 votes
1 answer
206 views

A number-theoretic random walk on the integers

7 votes
1 answer
162 views

If every map $X\to S^1$ is nullhomotopic, then $H_1 (X)$ is finite, without using cohomology?

6 votes
3 answers
239 views

Degree of map obtained by intersecting tangents to complex projective curve with fixed line

6 votes
1 answer
108 views

Robot painting a circular track

6 votes
1 answer
1k views

Extending isomorphism of punctured Riemann surfaces

6 votes
2 answers
204 views

Insertion and deletion of cubed words $w^3$

6 votes
3 answers
312 views

``Minimal generating ring" for a field of fractions

5 votes
2 answers
326 views

Nested logarithm series

5 votes
1 answer
132 views

Inequality in normed linear space implies independence

4 votes
0 answers
58 views

For how many residues $x\pmod{p}$ is $x^{-1} \in [1,(p-1)/2]$?

4 votes
1 answer
380 views

Are all connected and locally integral affine schemes globally integral?

4 votes
1 answer
384 views

Is every map from $\mathbb{R}P^2 \to S^2$ nullhomotopic?

4 votes
0 answers
59 views

Explicit polynomial over $\mathbb{F}_p$ mapping roots of irreducibles

4 votes
0 answers
54 views

Limit measuring failure of sum-set cancellability

4 votes
2 answers
1k views

How do ideal quotients behave with respect to localization?

4 votes
0 answers
213 views

Orbits of conjugation on matrices with fixed characteristic polynomial

4 votes
1 answer
297 views

Why is Minkowski's Theorem so powerful?

4 votes
1 answer
151 views

Elementary proof that $\sum_{j=1}^{n} \prod_{k \neq j} \frac{1}{1+(a_j - a_k + i)^2} \in \mathbb{R}$ for $a_1, \dots, a_n \in \mathbb{R}$ distinct