14,712 reputation
32658
bio website facebook.com/…
location Germany
age 22
visits member for 1 years, 2 months
seen yesterday

I study physics at the "Technische Universität Darmstadt", but I spend most time doing math. My favorite topics are Topology and Algebra, even though my knowledge there is strictly limited.


Apr
19
awarded  Good Question
Mar
8
awarded  Enlightened
Mar
8
awarded  Nice Answer
Feb
14
awarded  Yearling
Jan
17
awarded  limits
Jan
14
awarded  Good Question
Jan
2
comment What is an example of a ring $A$ that is isomorphic to ${\Bbb R}^{5}$?
$\mathbb{R}^5$ is isomorphic to $\mathbb{R}^5$. What kind of examples do you want ?
Jan
1
reviewed Close What is the equation of the circle which passes through P, Q and R?
Jan
1
reviewed Close I want to show the following
Jan
1
reviewed Close Soft question on “what” vs “which” when referring to sets of numbers
Jan
1
reviewed Close What's the difference between early transcendentals and late transcendentals?
Jan
1
reviewed Close Homologous surfaces in three-manifolds
Dec
28
comment Calculate $ \int_\gamma \frac{1}{z-i}dz $
cauchy integral formula, or more general the residue theorem
Dec
26
reviewed Close Prove that $\sqrt{\frac{2a}{a+b}}+\sqrt{\frac{2b}{b+c}}+\sqrt{\frac{2c}{c+a}}\le3$
Dec
25
reviewed Leave Open continuous function with precisely one point differentiability
Dec
25
reviewed Close Does Wiles's proof of Fermat's last theorem essentially use axiom of choice?
Dec
23
reviewed Looks Good How many ways we can place 3 balls into 4 boxes?
Dec
22
reviewed Close $\mathcal{N}^\omega$ is homeomorphic to $\mathcal{N}$, where $\mathcal{N}$ is Baire space.
Dec
22
reviewed Close How to use diagonalization to prove uncountability?
Dec
22
reviewed No Action Needed Why is $ A^0 = \{ \emptyset \}$?