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moqui
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5 votes
Accepted

Stabilizers in a permutation group

4 votes
Accepted

Let $a$ be an integer such that all real roots of the polynomial $2x^5+5x^4+10x^3+10x^2+10x+10$ lie in the interval $(a,a+1)$

3 votes
Accepted

Question 2.5.12 on page 23 of Ayman Badawi.

3 votes

Normalizer of the normalizer of the sylow $p$-subgroup

2 votes

Find all $3 \times 3$ magic square matrices $M$ such that $M^2$ is also magic

1 vote
Accepted

How to determine whether a given root is positive/real for this polynomial?

1 vote
Accepted

Determine cl(U(x,r))

1 vote

Minimal polynomial of a 6x6 matrix?

1 vote

Uniqueness of limit of convergent sequence

1 vote

Problem with closed set examples

1 vote
Accepted

Finding spectral radius of matrix without computing characteristic polynomial

1 vote

How get the extreme directions of an unbounded feasible region

0 votes

If $X, Y$ have the included point topology, $f: X \to Y$ is continuous iff $f$ preserves the included points

0 votes

Intersection of two open dense sets is dense

0 votes

Is $\mathbb R$ endowed with countable complement topology path connected ?

0 votes

Define $f(x)$ to be the distance from x to the nearest integer. What are the critical points of f?

0 votes

Can't argue with success? Looking for "bad math" that "gets away with it"

-1 votes

$(12)$ and $(123\dots n)$ are generators of $S_n$