bio | website | math.uni-trier.de/~wengenroth |
---|---|---|
location | Universität Trier | |
age | 47 | |
visits | member for | 3 years, 7 months |
seen | 14 hours ago | |
stats | profile views | 1,527 |
I am Professor for Mathematics at the Unversität Trier (Germany)
Aug
25 |
comment |
Hyperfunctions supported at a point
Distributions were invented by Laurent SCHWARTZ (not Schwarz). |
Aug
25 |
reviewed | Approve Equivalence classes of pairs linear transformations |
Aug
24 |
comment |
$A = \left\{ {{P_\Delta }(\lambda ):\left\| {{\Delta _j}} \right\| \le \varepsilon ,j = 0,1,2…m} \right\} \Rightarrow$A is closed
@user78481 Try at math.stackexchange.com |
Aug
24 |
revised |
Riemannian metrics preserved by diffeomorphisms
improved formatting |
Aug
20 |
comment |
$\mathbb{P}(d(X,Y)>\alpha)<\beta$ if $\mathbb{P}(X\in E)\leq \mathbb{P}(Y\in E^{\alpha})+\beta$ for all measurable E
Why only hints? |
Aug
19 |
comment |
The union of weighted compact supported continuous function
But you wrote: To make question more interesting, I delete the assumption that $v\in L^1_{loc}$ and hence $v$ could be $+\infty$ over a positive measure set. |
Aug
19 |
comment |
The union of weighted compact supported continuous function
What about constant weights $v=\infty$ and $v_n=n$? |
Aug
18 |
comment |
The union of weighted compact supported continuous function
I do not get the question: Apparently $C_c(\Omega)$ is the space of continuous functions with compact support. But $u$ and $u/v$ have the same support so that $C_c(\Omega,v)=C_c(\Omega)$??? |
Aug
10 |
comment |
Is the space of vectorial functions that are Dunford integrable complete?
Is there any obstacle when trying the usual proof that e.g. $L^1(\Omega,\Sigma,\mu)$ is complete? |
Aug
9 |
answered | Smoothness of a power of smooth non-negative function |
Aug
5 |
reviewed | Approve Symmetries of non-Riemannian curvature tensor |
Jul
23 |
answered | Generalized functions on a product of two manifolds |
Jul
20 |
comment |
Oriented volume and determinants: Circularity
@DeaneYang Okay, this a way to avoid the circularity. Thanks. |
Jul
18 |
reviewed | Approve Commutative algebra books representing the edge of research |
Jul
18 |
comment |
Oriented volume and determinants: Circularity
@DeaneYang Your suggestion thus uses determinants (to show that $GL(n)$ has two path components) in the definitionof orientation. |
Jul
17 |
asked | Oriented volume and determinants: Circularity |
Jun
23 |
comment |
When does analytic in the operator norm imply analytic in the trace class norm?
Extending a bit Christian Remling's comment: Grothendieck proved that for a complete locally convex space $X$ a function $f:U\to X$ is holomorphic if $\varphi\circ f:U\to \mathbb C$ is holomorphic for all continuous linear functionals $\varphi$ on $X$. As far as I remember, one does not even need all $\varphi$. |
Jun
15 |
comment |
Exponential rule for Whitney-$\mathcal{C}^{\infty}$-topology
Time to create an "Ask-Michor-tag". More seriously, Peter Michor, Andreas Kriegl, and collaborators did a lot on such questions for a big variety of function spaces. Look for "convenient calculus". |
Jun
15 |
accepted | The list of problems for Grothendieck's thesis |
Jun
15 |
awarded | Nice Question |