121 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Oak Ridge National LaboratoryUS12 papers
- Los Alamos National LaboratoryUS11 papers
- University of Tennessee at KnoxvilleUS10 papers
- University of KentuckyUS9 papers
- University of ManitobaCA9 papers
- University of VirginiaUS9 papers
- Arizona State UniversityUS8 papers
- North Carolina State UniversityUS7 papers
- Universidad Nacional Autónoma de MéxicoMX7 papers
- University of MichiganUS6 papers
- Baylor UniversityUS5 papers
- Massachusetts Institute of TechnologyUS5 papers
8 papers · 1 filter
Inverse Quantum Potential Reconstruction via Generalized Bertlmann-Martin Inequalities
M. Gage Plott, F. Ayça Çetinkaya, Rick Mukherjee
Reconstructing a radial (1D) quantum potential, V(r), from a few bound-state energies is a long-standing inverse problem because limited spectral data must constrain an entire pote…
On Absence of Threshold Resonances for Schrodinger and Dirac Operators
Fritz Gesztesy, Roger Nichols
Using a unified approach employing a homogeneous Lippmann-Schwinger-type equation satisfied by resonance functions and basic facts on Riesz potentials, we discuss the absence of th…
On the Global Limiting Absorption Principle for Massless Dirac Operators
Alan Carey, Fritz Gesztesy, Jens Kaad +4
We prove a global limiting absorption principle on the entire real line for free, massless Dirac operators for all space dimensions , $…
On Factorizations of Analytic Operator-Valued Functions and Eigenvalue Multiplicity Questions
Fritz Gesztesy, Helge Holden, Roger Nichols
We study several natural multiplicity questions that arise in the context of the Birman-Schwinger principle applied to non-self-adjoint operators. In particular, we re-prove (and e…
Principal Solutions Revisited
Stephen Clark, Fritz Gesztesy, Roger Nichols
The main objective of this paper is to identify principal solutions associated with Sturm-Liouville operators on arbitrary open intervals , as introduce…
Inverse Spectral Theory for Sturm-Liouville Operators with Distributional Potentials
Jonathan Eckhardt, Fritz Gesztesy, Roger Nichols +1
We discuss inverse spectral theory for singular differential operators on arbitrary intervals associated with rather general differential expressions o…
Weyl-Titchmarsh Theory for Sturm-Liouville Operators with Distributional Potentials
Jonathan Eckhardt, Fritz Gesztesy, Roger Nichols +1
We systematically develop Weyl-Titchmarsh theory for singular differential operators on arbitrary intervals associated with rather general differential…
Supersymmetry and Schrödinger-type operators with distributional matrix-valued potentials
Jonathan Eckhardt, Fritz Gesztesy, Roger Nichols +1
Building on work on Miura's transformation by Kappeler, Perry, Shubin, and Topalov, we develop a detailed spectral theoretic treatment of Schrödinger operators with matrix-valued p…