List questions from spectral-theory

Published on 04 Feb 2014 - 18:40

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Projections in spectral decomposition.

Published on 04 Feb 2014 - 20:43

79

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Unique ergodicity a spectral invariant?

Published on 31 Mar 2026 - 20:04

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pierre simon laplace and his knowledge of the (Laplacian) matrices

Published on 27 Mar 2026 - 7:42

106

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Spectral decomposition

Published on 07 Feb 2014 - 22:47

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operator on separable banach space whose spectrum and point spectrum is prescribed compact set

Published on 08 Feb 2014 - 16:30

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Direct sum of eigenspaces of a compact operator has finite codimension

Published on 29 Mar 2026 - 19:15

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Spectrum of a compact operator

Published on 29 Mar 2026 - 19:09

69

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properties of norms of operators

Published on 09 Feb 2014 - 21:07

606

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About some properties of the heat kernel

Published on 11 Feb 2014 - 7:25

380

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If $\lambda$ is isolated in $\sigma(u)$, then $E(\left\{\lambda\right\})(H)=\ker(u-\lambda)$.

Published on 13 Feb 2014 - 6:21

112

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Spectrum of perturbed operator's

Published on 13 Feb 2014 - 7:00

452

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renorm a Banach space to make an operator have spectral radius equal to norm

Published on 17 Feb 2014 - 13:36

61

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How to choose $\lambda (x) =\int_{0}^{\infty} \frac{\sin^{2}x \alpha}{\alpha^{2}} d\mu (\alpha)$; so $\lambda ^{-1}\in L^{1}(\mathbb R)$?

Published on 19 Feb 2014 - 6:06

825

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Simultaneous Orthogonal basis for $L^2(\mathbb{R}^n)$ and $H^1(\mathbb{R}^n)$

Published on 20 Feb 2014 - 18:27

List Question

Resolvent's estimation.

Projections in spectral decomposition.

Unique ergodicity a spectral invariant?

pierre simon laplace and his knowledge of the (Laplacian) matrices

Spectral decomposition

operator on separable banach space whose spectrum and point spectrum is prescribed compact set

Direct sum of eigenspaces of a compact operator has finite codimension

Spectrum of a compact operator

properties of norms of operators

About some properties of the heat kernel

If $\lambda$ is isolated in $\sigma(u)$, then $E(\left\{\lambda\right\})(H)=\ker(u-\lambda)$.

Spectrum of perturbed operator's

renorm a Banach space to make an operator have spectral radius equal to norm

How to choose $\lambda (x) =\int_{0}^{\infty} \frac{\sin^{2}x \alpha}{\alpha^{2}} d\mu (\alpha)$; so $\lambda ^{-1}\in L^{1}(\mathbb R)$?

Simultaneous Orthogonal basis for $L^2(\mathbb{R}^n)$ and $H^1(\mathbb{R}^n)$

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