List questions from closed-graph

Published on 03 Jan 2022 - 0:40

198

Views

$R(T)$ is closed iff there exists $c>0$ such that $d(x, N(T)) \leq c |T x|_F$ for all $x \in E$

Published on 16 Jan 2022 - 1:12

282

Views

About bounded and closable operators.

Published on 22 Jan 2022 - 23:16

196

Views

Prove that an operator is bounded if and only if the operator is closable

Published on 23 Jan 2022 - 2:14

126

Views

Example of Continuous function into$T_1$ Space with a Graph that Isn't Closed

Published on 01 Mar 2022 - 21:42

70

Views

Closed graph theorem and convergence

Published on 04 Mar 2022 - 11:51

152

Views

Weak convergence and continuity [check of proof]

Published on 10 Apr 2022 - 6:06

70

Views

Is there a non-compact Hausdorff space $Y $ such that for every topological space X, every function $f:X\to Y$ with closed graph is continuous?

Published on 25 Apr 2022 - 18:03

75

Views

Bounded inverse for a closed range closed operator

Published on 12 May 2022 - 9:41

29

Views

For every closed surface, the set of forbidden topological minors is finite.

Published on 25 Mar 2026 - 11:34

130

Views

Adjoint of an everywhere defined linear operator must be bounded?

Published on 26 May 2022 - 8:21

38

Views

Closed graph theorem in Simon B.

Published on 22 Jun 2022 - 21:05

57

Views

Can we draw a closed path made up of 9 line segments , each of which intersects exactly one of the other segments?

Published on 26 Jun 2022 - 6:33

250

Views

$\forall f\in Y^X$ with $\text{Gr}(f) $ is closed implies $f\in C(X, Y) $. Does this implies $(Y, \tau_Y) $ is compact?

Published on 30 Jun 2022 - 5:46

151

Views

Unbounded closed operator

Published on 05 Jul 2022 - 18:37

List Question

Is this operator bounded and closed?

$R(T)$ is closed iff there exists $c>0$ such that $d(x, N(T)) \leq c |T x|_F$ for all $x \in E$

About bounded and closable operators.

Prove that an operator is bounded if and only if the operator is closable

Example of Continuous function into$T_1$ Space with a Graph that Isn't Closed

Closed graph theorem and convergence

Weak convergence and continuity [check of proof]

Is there a non-compact Hausdorff space $Y $ such that for every topological space X, every function $f:X\to Y$ with closed graph is continuous?

Bounded inverse for a closed range closed operator

For every closed surface, the set of forbidden topological minors is finite.

Adjoint of an everywhere defined linear operator must be bounded?

Closed graph theorem in Simon B.

Can we draw a closed path made up of 9 line segments , each of which intersects exactly one of the other segments?

$\forall f\in Y^X$ with $\text{Gr}(f) $ is closed implies $f\in C(X, Y) $. Does this implies $(Y, \tau_Y) $ is compact?

Unbounded closed operator

Trending Questions

Popular # Hahtags

Popular Questions