List questions from adjoint-operators

Published on 12 Jun 2023 - 22:28

79

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Matrix representation of adjoint operators

Published on 15 Jun 2023 - 0:20

74

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Find the adjoint of the transformation given the expression of the transformation

Published on 17 Jun 2023 - 0:06

81

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Computing the adjoint operator

Published on 22 Jun 2023 - 4:03

39

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Hardy operator and its adjoint

Published on 25 Mar 2026 - 14:28

49

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Prove the operator $f$ is normal with the expression of the operator

Published on 25 Mar 2026 - 19:04

36

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Given the expression of the matrix find the adjoint and the square of the matrix

Published on 26 Mar 2026 - 4:53

46

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$\|A\|^2=\|A^* A\|$ for linear bounded operators on hilbert space?

Published on 01 Jul 2023 - 9:35

61

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Domain of adjoint of unbounded finite-rank operators

Published on 25 Mar 2026 - 18:49

324

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Isolated points of the spectrum are always eigenvalues?

Published on 26 Mar 2026 - 4:52

95

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Brezis' exercise 6.19: prove that $\sigma(T) = \sigma(T^*)$

Published on 25 Jul 2023 - 20:47

34

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Brezis' exercise 6.20.4: determine $T^*$

Published on 27 Jul 2023 - 1:09

38

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Smeared polynomials of creation and annihilation operators

Published on 25 Mar 2026 - 19:02

56

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Brezis' exercise 6.22.5: prove that $Q(E V(T)) = E V(Q(T))$ and $Q(\sigma(T)) = \sigma(Q(T))$

Published on 30 Jul 2023 - 9:17

89

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Brezis' exercise 6.24.1: prove that $T$ is positive IFF $\sigma (T) \subset [0, \infty)$

Published on 02 Aug 2023 - 16:24

List Question

How to calculate the adjoint operator for a given operator?

Matrix representation of adjoint operators

Find the adjoint of the transformation given the expression of the transformation

Computing the adjoint operator

Hardy operator and its adjoint

Prove the operator $f$ is normal with the expression of the operator

Given the expression of the matrix find the adjoint and the square of the matrix

$\|A\|^2=\|A^* A\|$ for linear bounded operators on hilbert space?

Domain of adjoint of unbounded finite-rank operators

Isolated points of the spectrum are always eigenvalues?

Brezis' exercise 6.19: prove that $\sigma(T) = \sigma(T^*)$

Brezis' exercise 6.20.4: determine $T^*$

Smeared polynomials of creation and annihilation operators

Brezis' exercise 6.22.5: prove that $Q(E V(T)) = E V(Q(T))$ and $Q(\sigma(T)) = \sigma(Q(T))$

Brezis' exercise 6.24.1: prove that $T$ is positive IFF $\sigma (T) \subset [0, \infty)$

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