List questions from spectral-theory

Published on 11 May 2018 - 3:16

35

Views

Is there such subsequence in $L^2(\Bbb{R}^2)$.

Published on 24 Mar 2026 - 22:08

104

Views

Is it possible to obtain an expression for the spectrum of a compact embedding operator? E.g. for $I:H^1([0,1])\to L^1([0,1])$?

Published on 25 Mar 2026 - 7:44

34

Views

Eigenvalues of $\Delta u +u^p$

Published on 24 Mar 2026 - 23:44

329

Views

Inverse scattering transform and GLM (Gel'fand-Levitan-Marchenko) equation

Published on 23 Mar 2026 - 4:02

133

Views

Spectral gap of the generator of a contraction semi-group

Published on 25 Mar 2026 - 1:20

573

Views

Eigenvalues and spectrum of an operator on a Hilbert space

Published on 16 May 2018 - 23:36

85

Views

Eigenvalue Problem for Fredholm (Generalised?) Integro-Differential Equations

Published on 24 Feb 2026 - 15:23

1k

Views

Spectrum of multiplication operator

Published on 19 May 2018 - 3:26

27

Views

Why $\operatorname{Im}(\lambda-A)\neq C_{[0,1]}$?

Published on 19 May 2018 - 11:07

63

Views

Eigenvalue problem corresponding to a univariate differential operator

Published on 19 May 2018 - 23:41

96

Views

No point spectrum in $l_2$

Published on 20 May 2018 - 10:17

105

Views

What does it mean to have a map defined on the continuous functions on the spectrum of an operator - $ \phi_A:C(\sigma(A)) \to \mathcal{L}(H) $?

Published on 22 May 2018 - 12:52

296

Views

Trying to construct simple example of a 'spectral measure' $\mu_\psi$ for the expression $(\psi,f(A)\psi) = \int_{\sigma(A)} f(\lambda)d\mu_\psi$?

Published on 22 May 2018 - 15:26

212

Views

Skew-symmetric matrices and invariants

Published on 22 May 2018 - 20:34

List Question

Equivalence norm between two fundamental descompotition (krein spaces).

Is there such subsequence in $L^2(\Bbb{R}^2)$.

Is it possible to obtain an expression for the spectrum of a compact embedding operator? E.g. for $I:H^1([0,1])\to L^1([0,1])$?

Eigenvalues of $\Delta u +u^p$

Inverse scattering transform and GLM (Gel'fand-Levitan-Marchenko) equation

Spectral gap of the generator of a contraction semi-group

Eigenvalues and spectrum of an operator on a Hilbert space

Eigenvalue Problem for Fredholm (Generalised?) Integro-Differential Equations

Spectrum of multiplication operator

Why $\operatorname{Im}(\lambda-A)\neq C_{[0,1]}$?

Eigenvalue problem corresponding to a univariate differential operator

No point spectrum in $l_2$

What does it mean to have a map defined on the continuous functions on the spectrum of an operator - $ \phi_A:C(\sigma(A)) \to \mathcal{L}(H) $?

Trying to construct simple example of a 'spectral measure' $\mu_\psi$ for the expression $(\psi,f(A)\psi) = \int_{\sigma(A)} f(\lambda)d\mu_\psi$?

Skew-symmetric matrices and invariants

Trending Questions

Popular # Hahtags

Popular Questions