List questions from spectral-theory

Published on 03 Feb 2019 - 22:45

54

Views

Source for a particular proof of the spectral theorem.

Published on 25 Mar 2026 - 6:11

165

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the spectrum of a bounded linear operator on $X\times X$

Published on 10 Feb 2019 - 9:09

206

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On spectral multiplicity of left shift operators

Published on 26 Mar 2026 - 13:30

169

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Non-diagonalizable compact operators and the trace-class condition

Published on 14 Feb 2019 - 16:46

161

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Some questions about the spectral composition of a nonnegative self-adjoint operator

Published on 25 Mar 2026 - 7:48

56

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Show that an operator with certain properties is an isomorphism

Published on 25 Mar 2026 - 4:57

105

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eigenfunctions of laplacian on infinite strip

Published on 19 Feb 2019 - 12:46

439

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Relationship between spectral projection and spectral measure

Published on 19 Feb 2019 - 16:40

83

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Spectral theory: Operator compact implies existence of convergent subsequence

Published on 25 Mar 2026 - 17:38

224

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Show $N$ normal there is a sequence of invertible normal operators that converges to $N$.

Published on 25 Mar 2026 - 11:06

30

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Spectrum of Rotated Harmonic Oscillator

Published on 25 Feb 2019 - 0:23

327

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Prove that the resolvent function is continuous as a function of complex numbers.

Published on 25 Feb 2019 - 4:15

121

Views

How do I construct an operator with a very specific spectrum?

Published on 25 Feb 2019 - 13:50

67

Views

Eigenvalues of $-y''+x^2y$

Published on 27 Feb 2019 - 14:05

List Question

Three Questions about a weighted right shift operator.

Source for a particular proof of the spectral theorem.

the spectrum of a bounded linear operator on $X\times X$

On spectral multiplicity of left shift operators

Non-diagonalizable compact operators and the trace-class condition

Some questions about the spectral composition of a nonnegative self-adjoint operator

Show that an operator with certain properties is an isomorphism

eigenfunctions of laplacian on infinite strip

Relationship between spectral projection and spectral measure

Spectral theory: Operator compact implies existence of convergent subsequence

Show $N$ normal there is a sequence of invertible normal operators that converges to $N$.

Spectrum of Rotated Harmonic Oscillator

Prove that the resolvent function is continuous as a function of complex numbers.

How do I construct an operator with a very specific spectrum?

Eigenvalues of $-y''+x^2y$

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