List questions from spectral-theory

Published on 10 Apr 2017 - 12:09

278

Views

Projection Valued Measure Form of the Spectral Theorem (Unbounded)

Published on 28 Mar 2026 - 10:16

540

Views

Is there a injective compact operator $T$ such that #$sp(T) < \infty$?

Published on 11 Apr 2017 - 13:19

26

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Spectral decompostion of a linear operator in Hilbert space

Published on 13 Apr 2017 - 20:18

620

Views

About extreme point in C*-algebra

Published on 29 Mar 2026 - 22:37

23

Views

Spectral theorem for linear maps (not operators)

Published on 15 Apr 2017 - 12:30

416

Views

Residual Spectrum of $(Tf)(x) = \int^x_0 f(y) dy + x f(x)$

Published on 28 Mar 2026 - 22:29

1.2k

Views

Meaning of terminologies "regular value", "point spectrum", "continous spectrum" and "residual spectrum"

Published on 18 Apr 2017 - 14:59

241

Views

Conditions for positive definiteness: matrix inequality

Published on 19 Apr 2017 - 14:34

836

Views

Upper bound on maximum eigenvalue

Published on 19 Apr 2017 - 15:09

48

Views

Constructing a function with non-dense range

Published on 20 Apr 2017 - 2:31

288

Views

Eigenvalues of double right shift operator

Published on 20 Apr 2017 - 20:00

76

Views

Invertible harmonic oscillator

Published on 26 Mar 2026 - 16:03

76

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Is there a densely defined closed accretive operator with this resolvent set?

Published on 21 Apr 2017 - 10:50

1.6k

Views

Find the signature of the symmetric bilinear form given by $s(f,g) :=\int_{-1}^{1} f(x)g(x)(35x^4-30x^2+3)dx$

Published on 29 Mar 2026 - 4:55

List Question

Is self-adjoint the same as hyper-maximal symmetric?

Projection Valued Measure Form of the Spectral Theorem (Unbounded)

Is there a injective compact operator $T$ such that #$sp(T) < \infty$?

Spectral decompostion of a linear operator in Hilbert space

About extreme point in C*-algebra

Spectral theorem for linear maps (not operators)

Residual Spectrum of $(Tf)(x) = \int^x_0 f(y) dy + x f(x)$

Meaning of terminologies "regular value", "point spectrum", "continous spectrum" and "residual spectrum"

Conditions for positive definiteness: matrix inequality

Upper bound on maximum eigenvalue

Constructing a function with non-dense range

Eigenvalues of double right shift operator

Invertible harmonic oscillator

Is there a densely defined closed accretive operator with this resolvent set?

Find the signature of the symmetric bilinear form given by $s(f,g) :=\int_{-1}^{1} f(x)g(x)(35x^4-30x^2+3)dx$

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