List questions from spectral-theory

Published on 26 Mar 2026 - 9:30

48

Views

Unitary operator in the spectral theorem is unique?

Published on 15 Aug 2023 - 13:31

25

Views

Spectrum of a random matrix with distinct distributions per row

Published on 15 Aug 2023 - 18:52

43

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Do these properties hold for trace class operators?

Published on 18 Aug 2023 - 9:07

33

Views

Integral with respect to a projection valued measure?

Published on 18 Aug 2023 - 10:39

60

Views

Discrete spectrum of laplacian $ \sigma_{disc}(\Delta)$ on $ H^2(\mathbb{R}^n)$?

Published on 18 Aug 2023 - 17:47

50

Views

How to find the eigenvalues of the operator?

Published on 20 Aug 2023 - 11:02

32

Views

Interval in AC spectrum of self-adjoint operator

Published on 21 Aug 2023 - 14:30

62

Views

Compactness nilpotent operator

Published on 24 Aug 2023 - 21:21

34

Views

Difference on two versions of spectrum of linear bounded operator

Published on 26 Aug 2023 - 7:26

57

Views

Infimum of numerical range = infimum of spectrum?

Published on 28 Aug 2023 - 8:13

33

Views

Continuous function of a projection operator is itself?

Published on 28 Aug 2023 - 13:40

117

Views

How to make sense of the spectrum of an unbounded operator

Published on 28 Aug 2023 - 21:08

33

Views

Convergence of self-adjoint operators with converging spectra

Published on 25 Mar 2026 - 20:15

65

Views

Nilpotency of $(A-z)P_z$ imply $z$ is an Eigenvalue?

Published on 01 Sep 2023 - 1:09

List Question

Minimization problem of the Fiedler vector

Unitary operator in the spectral theorem is unique?

Spectrum of a random matrix with distinct distributions per row

Do these properties hold for trace class operators?

Integral with respect to a projection valued measure?

Discrete spectrum of laplacian $ \sigma_{disc}(\Delta)$ on $ H^2(\mathbb{R}^n)$?

How to find the eigenvalues of the operator?

Interval in AC spectrum of self-adjoint operator

Compactness nilpotent operator

Difference on two versions of spectrum of linear bounded operator

Infimum of numerical range = infimum of spectrum?

Continuous function of a projection operator is itself?

How to make sense of the spectrum of an unbounded operator

Convergence of self-adjoint operators with converging spectra

Nilpotency of $(A-z)P_z$ imply $z$ is an Eigenvalue?

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