281 reputation
128
bio website iam.uni-bonn.de/users/zaal
location Germany
age 28
visits member for 4 years, 3 months
seen 7 hours ago

I'm a mathematician working at University of Bonn. As a standard, I use (AMS-)LaTeX and BibTeX for my documents.

My main research interest is variational calculus, in particular a generalized notion of gradient flow.

I have also been involved in a few programming projects, using Delphi 2007, MySQL and PHP. I mainly work on datastructure and algorithms (the stuff going on 'behind the interface').

Have a look at my website at University of Bonn


Dec
16
awarded  Caucus
Nov
27
comment Infinite sum of products on my mid-term
@maceq: yes, fixed it.
Nov
27
revised Infinite sum of products on my mid-term
Fixed typo
Nov
27
awarded  Editor
Nov
27
revised Infinite sum of products on my mid-term
Added convergence for the second series
Nov
27
comment Infinite sum of products on my mid-term
The limit to compute for Raabe test equals $-\frac{1}{2}$, so this test is also inconclusive.
Nov
27
answered Infinite sum of products on my mid-term
Nov
27
answered Noether's theorem
Feb
11
awarded  Informed
Nov
17
awarded  Fanatic
May
14
awarded  Caucus
Jan
24
answered sequence of continuous linear operators on banach spaces
Jan
21
comment $\text{Sup}\{x\geq0:\sum\limits_{n=1}^\infty x^{\sqrt n}<\infty \}$
@tetori: I see. Seems to be correct.
Jan
21
answered Differentiability on vector values function
Jan
21
answered Pre-Image of a continuous function
Jan
21
awarded  Critic
Jan
21
comment $\text{Sup}\{x\geq0:\sum\limits_{n=1}^\infty x^{\sqrt n}<\infty \}$
This is not what is asked: OP would like to know for what values of $x$ the sum does converge.
Jan
18
awarded  Enthusiast
Dec
28
awarded  Yearling
Dec
28
answered A question about uniform convergence in $\mathbb R$