List questions from adjoint-operators

Published on 26 Mar 2026 - 14:22

35

Views

Proving a linear map has a solution if and only if its solution is in the null space of the adjoint map

Published on 29 Mar 2026 - 20:20

52

Views

Is this proof of $\Vert A\Vert=\Vert A^{\dagger}\Vert$ right?

Published on 12 Nov 2020 - 18:26

17

Views

Solution population model with dual system

Published on 12 Mar 2026 - 14:42

373

Views

Question on positive square root of an operator

Published on 26 Mar 2026 - 19:14

78

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Showing that range of a map is closed

Published on 26 Mar 2026 - 16:05

103

Views

Adjoint test for complex-to-real operator

Published on 22 Nov 2020 - 14:47

319

Views

Self-Adjoint of Volterra Operator

Published on 23 Nov 2020 - 23:26

414

Views

Fredholm operators -- index

Published on 25 Mar 2026 - 22:30

66

Views

Let $A, B:V \to V$ be two linear operators in a vector space with inner product. If $A$ and $B$ commutes then so does $A^\ast$ and $B^\ast$

Published on 28 Nov 2020 - 23:18

127

Views

Proof that the adjoint operator of $\Phi$ is $\Phi(\sigma)=\sum_{i}A_{i}^{*}\sigma B_{i}$ in terms of Kraus operators.

Published on 26 Mar 2026 - 22:16

901

Views

$A$ and $B$ are positive self-adjoint matrix such that $AB$ is self-adjoint then $AB$ is positive

Published on 29 Mar 2026 - 3:37

224

Views

A question on self-adjoint operator on Hilbert space

Published on 29 Mar 2026 - 6:41

136

Views

Adjoint operator of a partial differential operator used to do the carleman estimate

Published on 28 Mar 2026 - 18:22

849

Views

On the definition of adjoint maps on inner product spaces

Published on 06 Dec 2020 - 12:45

List Question

Is the matrix of an hermitian (real) endomorphism symmetric?

Proving a linear map has a solution if and only if its solution is in the null space of the adjoint map

Is this proof of $\Vert A\Vert=\Vert A^{\dagger}\Vert$ right?

Solution population model with dual system

Question on positive square root of an operator

Showing that range of a map is closed

Adjoint test for complex-to-real operator

Self-Adjoint of Volterra Operator

Fredholm operators -- index

Let $A, B:V \to V$ be two linear operators in a vector space with inner product. If $A$ and $B$ commutes then so does $A^\ast$ and $B^\ast$

Proof that the adjoint operator of $\Phi$ is $\Phi(\sigma)=\sum_{i}A_{i}^{*}\sigma B_{i}$ in terms of Kraus operators.

$A$ and $B$ are positive self-adjoint matrix such that $AB$ is self-adjoint then $AB$ is positive

A question on self-adjoint operator on Hilbert space

Adjoint operator of a partial differential operator used to do the carleman estimate

On the definition of adjoint maps on inner product spaces

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