List questions from spectral-theory

Published on 11 Apr 2026 - 1:32

2.5k

Views

Green function of 1D Laplacian

Published on 11 Apr 2026 - 6:45

71

Views

Equality of two operators using (inverse) resolvent

Published on 10 May 2026 - 12:53

28

Views

How do I show that this is Analytic Operator?

Published on 11 Apr 2026 - 11:30

348

Views

stuck in proof: eigenvalues of a self-adjoint compact operator on hilbertspace are postive

Published on 12 Apr 2026 - 4:13

45

Views

Self-adoint positive operator $A$

Published on 09 Apr 2026 - 11:24

146

Views

Projection valued measure with compact support

Published on 10 Apr 2026 - 15:09

88

Views

When $X$ is Banach, the spectrum of $T$ is either finite or countably infinite.

Published on 13 Apr 2026 - 17:41

209

Views

spectrum and point spectrum of $(Af)(x)=(2+\cos x)f(x)$

Published on 16 Apr 2026 - 11:47

42

Views

How to construct such sequence

Published on 10 May 2026 - 11:17

42

Views

When is spectral integral invertible?

Published on 17 Apr 2026 - 15:03

547

Views

The operator norm and the spectral radius

Published on 17 Apr 2026 - 5:45

1.8k

Views

Spectrum of the right-shift operator on $\ell ^2 (\mathbb{C})$, and a general spectrum question

Published on 13 Apr 2026 - 10:12

68

Views

Basic spectral geometry question for surfaces in $\mathbb{R}^3$

Published on 14 Apr 2026 - 1:23

63

Views

Spectral radius analysis of a structured matrix (function of stochastic matrices)

Published on 14 Apr 2026 - 9:08

List Question

spectral gap of an operator

Green function of 1D Laplacian

Equality of two operators using (inverse) resolvent

How do I show that this is Analytic Operator?

stuck in proof: eigenvalues of a self-adjoint compact operator on hilbertspace are postive

Self-adoint positive operator $A$

Projection valued measure with compact support

When $X$ is Banach, the spectrum of $T$ is either finite or countably infinite.

spectrum and point spectrum of $(Af)(x)=(2+\cos x)f(x)$

How to construct such sequence

When is spectral integral invertible?

The operator norm and the spectral radius

Spectrum of the right-shift operator on $\ell ^2 (\mathbb{C})$, and a general spectrum question

Basic spectral geometry question for surfaces in $\mathbb{R}^3$

Spectral radius analysis of a structured matrix (function of stochastic matrices)

Trending Questions

Popular # Hahtags

Popular Questions