List questions from spectral-theory

60

Views

Bounding $v_1^\top D v_1$ where $v_1$ is the top eigenvector of a symmetric random matrix (Wigner matrix)

Published on 26 Mar 2026 - 11:02

32

Views

Spectral theorem for diagonalizable matrices and associated spectral projectors

Published on 29 Mar 2026 - 6:55

26

Views

Seprating Imaginary and real part

Published on 28 Feb 2024 - 11:13

49

Views

Spectral family/resolution for $A \otimes 1+ 1 \otimes B$

Published on 25 Mar 2026 - 21:49

23

Views

Discrete spectrum of $A \otimes 1+ 1 \otimes B$

Published on 25 Mar 2026 - 21:49

98

Views

Convergent sum of operator norms of iterates of kernel operator corresponding to stepping of graphon $W$

Published on 28 Mar 2026 - 16:25

26

Views

How is changing the boundary conditions a finite rank perturbation?

Published on 25 Mar 2026 - 21:49

26

Views

Convergence in trace

Published on 28 Mar 2026 - 16:20

46

Views

Determine spectrum of a sum $S=T+rG$ of operators on a function space

Published on 01 Apr 2026 - 7:17

47

Views

Inequality for spectral families of self-adjoint operators

Published on 25 Mar 2026 - 23:10

34

Views

Eigenvalue Problem for the Laplace-Beltrami Operator in Real Hilbert Spaces

Published on 28 Mar 2026 - 14:07

64

Views

exponential of operators - Trotter product formula

Published on 26 Mar 2026 - 11:00

673

Views

Unbounded operator whose spectrum is the entire complex plane?

Published on 24 Mar 2024 - 0:25

56

Views

Is the spectrum of an element in an algebra, $\sigma(x) = \{z \in\mathbb{C}: \vert z\vert\leq\Vert x \Vert\}$?

Published on 25 Mar 2026 - 22:05

43

Views

Boundedness of $A^{-1} P A$ where P is projector and A unbounded

Published on 29 Mar 2024 - 19:51

List Question

Bounding $v_1^\top D v_1$ where $v_1$ is the top eigenvector of a symmetric random matrix (Wigner matrix)

Spectral theorem for diagonalizable matrices and associated spectral projectors

Seprating Imaginary and real part

Spectral family/resolution for $A \otimes 1+ 1 \otimes B$

Discrete spectrum of $A \otimes 1+ 1 \otimes B$

Convergent sum of operator norms of iterates of kernel operator corresponding to stepping of graphon $W$

How is changing the boundary conditions a finite rank perturbation?

Convergence in trace

Determine spectrum of a sum $S=T+rG$ of operators on a function space

Inequality for spectral families of self-adjoint operators

Eigenvalue Problem for the Laplace-Beltrami Operator in Real Hilbert Spaces

exponential of operators - Trotter product formula

Unbounded operator whose spectrum is the entire complex plane?

Is the spectrum of an element in an algebra, $\sigma(x) = \{z \in\mathbb{C}: \vert z\vert\leq\Vert x \Vert\}$?

Boundedness of $A^{-1} P A$ where P is projector and A unbounded

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