List questions from unbounded-operators

93

Views

How can we extend $\operatorname{div}:C_c^\infty(\Omega)^d\to L^p(\Omega)$ to $W_0^{1,\:p}(\Omega)^d$?

Published on 28 Mar 2026 - 1:26

558

Views

Concerning unbounded linear operators on a Hilbert space

Published on 16 May 2013 - 18:50

1k

Views

Breaking the boundedness condition in the Riesz Representation theorem

Published on 26 Mar 2026 - 12:33

95

Views

Commutating operators modulo compact operator

Published on 31 Dec 2013 - 8:24

277

Views

Projection Valued Measure Form of the Spectral Theorem (Unbounded)

Published on 11 Apr 2017 - 1:40

170

Views

Linear operators in Banach represented by Multiplication Operators in C[0,1]

Published on 26 Mar 2026 - 19:05

370

Views

The spectrum of an unbounded differential operator on $C (\mathbb{R}^+)$

Published on 15 May 2017 - 13:26

314

Views

Does $e^{X} e^{Y} = e^{X + Y}$ imply that the operators $X$ and $Y$ commute?

Published on 19 May 2017 - 14:35

824

Views

Exponential of unbounded self adjoint operator

Published on 24 Feb 2026 - 2:11

1.8k

Views

Surjective bounded operator in Banach spaces without bounded right-inverse

Published on 29 May 2017 - 11:22

271

Views

Friedrichs extension of differential operator on $[0,1]$

Published on 26 Mar 2026 - 17:31

233

Views

If $A:D(A)\to X$ is a closed operator then $\lambda I -A$ is closed?

Published on 29 May 2017 - 21:26

61

Views

If $A$ is densely defined symmetric operator, $\lambda-A$ is onto $X \implies \lambda \in \rho(A)$

Published on 30 May 2017 - 9:13

407

Views

Range of unbounded operator is closed

Published on 08 Jun 2017 - 0:12

571

Views

Do eigenvectors of Hermitian operators span the space in infinite dimensions?

Published on 16 Jun 2017 - 19:31

List Question

How can we extend $\operatorname{div}:C_c^\infty(\Omega)^d\to L^p(\Omega)$ to $W_0^{1,\:p}(\Omega)^d$?

Concerning unbounded linear operators on a Hilbert space

Breaking the boundedness condition in the Riesz Representation theorem

Commutating operators modulo compact operator

Projection Valued Measure Form of the Spectral Theorem (Unbounded)

Linear operators in Banach represented by Multiplication Operators in C[0,1]

The spectrum of an unbounded differential operator on $C (\mathbb{R}^+)$

Does $e^{X} e^{Y} = e^{X + Y}$ imply that the operators $X$ and $Y$ commute?

Exponential of unbounded self adjoint operator

Surjective bounded operator in Banach spaces without bounded right-inverse

Friedrichs extension of differential operator on $[0,1]$

If $A:D(A)\to X$ is a closed operator then $\lambda I -A$ is closed?

If $A$ is densely defined symmetric operator, $\lambda-A$ is onto $X \implies \lambda \in \rho(A)$

Range of unbounded operator is closed

Do eigenvectors of Hermitian operators span the space in infinite dimensions?

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