2 citations · 4 across the 5 of their papers we have counts for
5 papers
Coupling Resonances and Spectral Properties of the Product of Resolvent and Perturbation
Nurulla Azamov, Tom Daniels
Given a self-adjoint operator and a relatively compact self-adjoint perturbation , we study in some detail the spectral properties of the product . For some…
Singular spectral shift function for Schrödinger operators
Nurulla Azamov, Tom Daniels
Let be a Schroedinger operator on or 3, where is a bounded measurable real-valued function on Let be a…
A remark on imaginary part of resonance points
Nurulla Azamov, Tom Daniels
In this paper we prove for rank one perturbations that negative two times reciprocal of the imaginary part of resonance point is equal to the rate of change of the scattering phase…
A Topological Approach to Unitary Spectral Flow via Continuous Enumeration of Eigenvalues
Nurulla Azamov, Tom Daniels, Yohei Tanaka
It is a well-known result of T.\,Kato that given a continuous path of square matrices of a fixed dimension, the eigenvalues of the path can be chosen continuously. In this paper, w…
Resonance index and singular mu-invariant
Nurulla Azamov, Tom Daniels
With the essential spectrum of a self-adjoint operator given a relatively trace class perturbation one can associate an integer-valued invariant which admits different descriptions…