Hagen von Eitzen

less info
meta site favicon meta user | stack exchange network profile network profile
42,092 reputation
23493
bio website von-eitzen.de/math/tntrep.xml
location Bonn, Germany
age 47
visits member for 8 months
seen 58 mins ago
stats profile views 3,223

I did study math and had a knack for it, but I am sooo out of that business now ...


1,722 Answers

newest activity votes
6
Outer Automorphisms of $S_n$
6
Why would the axiom of choice be needed if ordinals are well-ordered without AC?
6
Finding if the limit does not exist
6
Divergence of the harmonic series and the Cauchy criterion
5
$P[X=Y]=0$ if $X,Y$ are i.i.d. with continuous c.d.f.
5
Why the terms “unit” and “irreducible”?
5
$x^4+y^4 \geq \frac{(x^2+y^2)^2}{2}$
5
Topology of Forum Posts
5
High school number theory question
5
Summation of logs
5
Can every infinite set be divided into pairwise disjoint subsets of size $n\in\mathbb{N}$?
5
Showing that this set of functions is a group.
5
I need to calculate the period, I need help to verify my answer
5
Prove that if $A \in M_{2\times2}\mathbb {(R)}$ is symmetric then A is diagonalizable
5
Proving Continuity with Open Sets
5
Convex hexagon's diagonals.
5
What's the idea of an action of a group?
5
Probability of an even number
5
$x^4 + 4x^3 - 2x^2 - 12x + k$ has 4 real roots. Find the condition on k.
5
Binomial theorem and binomial expansion
5
Sum of all numbers x such that $(3x^2+9x-2012)^{(x^3-2012x^2-10x+1)} = 1$?
5
Polynomial as a product of monomials
5
$f(16x)=16f(x) $ and $ f$ is continuous
5
Roots of a polynomial and its derivative
5
A bounded sequence whose sequence of averages does not converge
5
How can I evaluate this limit?
5
If $ H $ is a normal subgroup of $ G $, is $ G/H \times H \cong G $?
5
How to simplify $42\sqrt{45} \over 7\sqrt{35}$?
5
The usage of the term “family” in mathematics
5
Question about Topological Vector Spaces
1 … 3 4 5 6 7 … 58