Jochen Wengenroth's user avatar
Jochen Wengenroth's user avatar
Jochen Wengenroth's user avatar
Jochen Wengenroth
  • Member for 12 years, 2 months
  • Last seen this week
13 votes
Accepted

Do Hausdorff locally convex inductive limits always exist?

7 votes

Understanding a simplifying assumption in proof of the invariant subspace problem

3 votes
Accepted

Extending a $C^1$ function on $\mathbb R^n$ to a set of finite $\mathcal H^{n-2}$ measure

3 votes

Bounded $C_0$-semigroups on barrelled spaces are equicontinuous

6 votes
Accepted

Boundary points in $\overline{\operatorname{conv}\{z_i\}_{i\in I}}$

4 votes
Accepted

Is the projective limit $\mathcal{D}(\mathbb{R})$ separable?

4 votes
Accepted

Variation of concept of a Lusin space

6 votes

Why do infinite-dimensional vector spaces usually have additional structure?

2 votes
Accepted

For $\mu$-a.e. $x \in X$, the sequence $(f_n(x, \cdot))_n$ is Cauchy in $L^1 (Y)$. Then $(f_n)$ is Cauchy in $L^1 (X \times Y)$

3 votes
Accepted

A contraction mapping theorem

6 votes
Accepted

Is there an operation in topology analogous to the operation of averaging over a compact subgroup in harmonic analysis?

9 votes
Accepted

Ext groups of locally convex topological vector spaces

6 votes
Accepted

On the property P in the Whitney extension theorem

3 votes
Accepted

The notion of "Admissible" and "Permitted" in the context of convolution with distributions and hypocontinuity

1 vote

Given a compact set $K \subset \mathbb{R}^n$, is the space of distributions supported on $K$ the dual of some test function space?

8 votes
Accepted

Is the subcategory of strict morphisms abelian?

1 vote

Vector measures as metric currents

2 votes

Duality of projective and injective tensor product

5 votes

Kernel of bounded operator $C_0(\mathbb{R})\to C_0(\mathbb{R})$

4 votes
Accepted

Vague Topologies induced by $C_c$ and $C_0$ are the same on a closed ball of finite Radon measures?

2 votes

Essentially zero inverse system of abelian groups

7 votes

Existence of an open convex set

3 votes

Metric space whose bounded subsets are totally bounded

12 votes

Is Schauder's conjecture resolved?

1 vote

On conditions for the existence of $h\in L^1$ such that $h>0$ a.e

4 votes
Accepted

Show that a certain convergence of measures is equivalent to a certain convergence of integrals

4 votes
Accepted

Between Tietze's and Dugundji's extension theorems

1 vote

Quotient of complete topological ring

8 votes
Accepted

Weak* bounded and strong bounded are the same?

4 votes

Unit ball of the sum space

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