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  1. Article

    Open Access

    Uniqueness theorems for weighted harmonic functions in the upper half-plane

    We consider a class of weighted harmonic functions in the open upper half-plane known as α-harmonic functions. Of particular interest is the uniqueness problem for such functions subject to a vanishing Dirichlet ...

    Anders Olofsson, Jens Wittsten in Journal d'Analyse Mathématique (2024)

  2. Article

    Open Access

    Complex Eigenvalue Splitting for the Dirac Operator

    We analyze the eigenvalue problem for the semiclassical Dirac (or Zakharov–Shabat) operator on the real line with general analytic potential. We provide Bohr–Sommerfeld quantization conditions near energy leve...

    Koki Hirota, Jens Wittsten in Communications in Mathematical Physics (2021)