3,926 reputation
832
bio website nullteilerfrei.de
location Germany
age 29
visits member for 3 years, 4 months
seen 50 mins ago

I'm a PhD student with research interests in Algebraic Geometry, Algebraic Complexity Theory and Geometric Invariant Theory.


Jun
2
awarded  Yearling
May
29
asked Looking for an example for a very particular kind of cone
May
27
comment How to find the lengths of the shortest paths in a directed graph in $O(m)$ steps?
You're right, but now that I think about it we have to be more specific. Do you want the lengths of all shortest paths for all pairs of vertices? In this case, you need $\mathcal O(n^2)$ steps anyway, because you have quadraticly many values to compute.
May
26
comment How to find the lengths of the shortest paths in a directed graph in $O(m)$ steps?
I think you can simply use BFS.
May
26
reviewed Approve suggested edit on Improper Integral $\int_{1}^{\infty} \sin \left( \sin\left( \frac {1}{\sqrt{x}+1} \right) \right) dx$
May
25
answered could we also calculate the number of permutations we have to do,to get the matrix $I$?
May
25
answered the diagonal $\Delta (Y) =\{(y,y)\in Y \times Y\}$ is closed in $\Bbb P^m \times \Bbb P^m $
May
24
answered projective homogeneous $G$-variety is equivariantly isomorphic to a partial flag variety $G/P$ where $P$ is projective variety.
May
21
comment Differentials on a curve
Is $G$ finite? Or is it an algebraic group? In general, it is not clear how $C/G$ has the structure of a variety.
May
16
answered Existing of an automorphism in Noether normalization lemma
May
15
reviewed Edit suggested edit on Please help me evaluate this integral
May
15
revised Please help me evaluate this integral
mathjaxify
May
11
reviewed Approve suggested edit on Taylor series of $\cos(x)$ centered at $a=\frac{\pi}{3}$
May
8
answered Factor Ring fundamental question
May
1
reviewed Reject suggested edit on Subdifferential boundary conditions: Testing with $L^2$ or $H^{1/2}$ functions
Apr
30
reviewed Reject suggested edit on There are 81 trees with {1,2,3,…81} apples on them respectively. Distribute among 9 people. Each get equal apples
Apr
25
reviewed Approve suggested edit on Can someone clear up my question on an area under the curve.
Apr
23
comment Ring of Formal Power Series Over a Field is a Local Ring
@fretty: +1 for "everyday power series".
Apr
23
answered Irreducible Components of $GL(n,K)$
Apr
19
comment Kid's homework: 4 equations 5 unknowns? Going crazy!
There is no unique solution to that system of equations even if you limit yourself only to the natural numbers. I am posting just to confirm your observation, but concur with @naslundx.