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Chris Custer

Los Angeles

https://www.linkedin.com/in/chris-custer-4302378/

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13
A question on Euler's totient function
mathoverflow.net

10
Is $\ \{ \sin(p):\ p\ $ is prime $ \}\ $ a dense subset of $\ [-1,1]\ ?$
math.stackexchange.com

8
Find an average number by using group action
math.stackexchange.com

7
What is a good math joke?
math.stackexchange.com

6
Noteworthy, but not so famous conjectures resolved recent years
mathoverflow.net

6
Is the polynomial $p(x)=(x^{100}+1)^{100}+(x^2+1)^{100}+1$ divisible by $x^2+x+1$?
math.stackexchange.com

6
Can two non-isomorphic finitely presented groups have isomorphic abelianizations?
math.stackexchange.com

5
Length of a product of conjugates of an element in a free group
mathoverflow.net

5
Amount of Isomorphisms Between Two Cyclic Groups of Identical Order is equal to the amount of Automorphisms of one of the cyclic groups
math.stackexchange.com

5
find the number of subspaces $W$ such that $U\subseteq W$
math.stackexchange.com

5
Let $G$ be a group with $25$ elements and $E$ a $G$-set with $32$ elements. Show that there exists $a \in E$ such that $G_a=G$.
math.stackexchange.com

5
Is there a vector space whose additive identity is not in the form of $(0,\ldots,0)$?
math.stackexchange.com

5
Question about discrete topology of $\mathbb{R}$
math.stackexchange.com

5
Does every presentation correspond to a group?
math.stackexchange.com

5
Why are there only 5 abelian groups of order 48?
math.stackexchange.com

5
Show that if $A=\{1, 2,...\}$, then $S_A$ is an infinite group
math.stackexchange.com

5
How to show a function is holomorphic
math.stackexchange.com

5
$G$ is a finite group of order 21. Find the smallest $n$ such that there is an injective group homomorphism from $G$ to $S_n$
math.stackexchange.com

5
G has a element of order 2 not lying in center
math.stackexchange.com

5
Discuss the set is countable / uncountable
math.stackexchange.com