List questions from spectral-theory

Published on 12 Jul 2023 - 7:27

26

Views

find Linear operator

Published on 12 Jul 2023 - 8:00

147

Views

Brezis' exercise 6.18.10: how to prove that $\sigma (S_r \circ M)=[-|\alpha|, |\alpha|]$ in case $\alpha \neq 0$?

Published on 13 Jul 2023 - 8:14

30

Views

Estimate for change in eigenvalues of truncated half line operator

Published on 28 Mar 2026 - 20:13

40

Views

Find the eigenvalues and eigenvectors of $n\times n$ Toeplitz matrices using induction.

Published on 14 Jul 2023 - 13:45

90

Views

Brezis' exercise 6.18.11: how to tackle the case $|\lambda| \le \sqrt{|ab|}$?

Published on 15 Jul 2023 - 21:25

30

Views

Continuous dependence of eigenvalues for Sturm-Liouville problem

Published on 26 Mar 2026 - 20:38

324

Views

Isolated points of the spectrum are always eigenvalues?

Published on 26 Mar 2026 - 4:52

33

Views

Relation between elements of essential spectrum and the eigenvalue of a self adjoint operator

Published on 27 Mar 2026 - 8:41

59

Views

Let $s\in\mathbb{R}$ and $T: C(\mathbb{R})\to C(\mathbb{R})$ defined by $(Tu)(t)=u(t+s)$. Find the resolvent of $T$, $\rho(T)$.

Published on 21 Jul 2023 - 22:16

171

Views

How to interpret spectral projections?

Published on 22 Jul 2023 - 21:34

42

Views

Is Spectral Theory necessary to show that QM operators are densely defined, essentially self-adjoined?

Published on 30 Mar 2026 - 11:17

46

Views

Generalized eigenfunctions of the normal operator and resolution of identity

Published on 24 Jul 2023 - 19:57

169

Views

How is a spectral subspace of a bounded linear operator defined?

Published on 26 Mar 2026 - 4:50

96

Views

Brezis' exercise 6.19: prove that $\sigma(T) = \sigma(T^*)$

Published on 28 Mar 2026 - 10:56

List Question

What form does the multiplication operator take in the spectral theorem?

find Linear operator

Brezis' exercise 6.18.10: how to prove that $\sigma (S_r \circ M)=[-|\alpha|, |\alpha|]$ in case $\alpha \neq 0$?

Estimate for change in eigenvalues of truncated half line operator

Find the eigenvalues and eigenvectors of $n\times n$ Toeplitz matrices using induction.

Brezis' exercise 6.18.11: how to tackle the case $|\lambda| \le \sqrt{|ab|}$?

Continuous dependence of eigenvalues for Sturm-Liouville problem

Isolated points of the spectrum are always eigenvalues?

Relation between elements of essential spectrum and the eigenvalue of a self adjoint operator

Let $s\in\mathbb{R}$ and $T: C(\mathbb{R})\to C(\mathbb{R})$ defined by $(Tu)(t)=u(t+s)$. Find the resolvent of $T$, $\rho(T)$.

How to interpret spectral projections?

Is Spectral Theory necessary to show that QM operators are densely defined, essentially self-adjoined?

Generalized eigenfunctions of the normal operator and resolution of identity

How is a spectral subspace of a bounded linear operator defined?

Brezis' exercise 6.19: prove that $\sigma(T) = \sigma(T^*)$

Trending Questions

Popular # Hahtags

Popular Questions