46 citations · 155 across the 20 of their papers we have counts for
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math.AP2019★ 4 cited
Complex eigenvalue splitting for the Dirac operator
Koki Hirota, Jens Wittsten
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 quantizatio…
math.NA2019★ 2 cited
Removing numerical dispersion from linear evolution equations
Jens Wittsten, Erik F. M. Koene, Fredrik Andersson +1
We describe a method for removing the numerical errors in the modeling of linear evolution equations that are caused by approximating the time derivative by a finite difference ope…