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20062026
most citedOn the ionization energy of the semi-relativistic Pauli-Fierz model for a single particle

11 citations · 48 across the 20 of their papers we have counts for

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math.SP2021

Absence of Embedded Eigenvalues for Non-Local Schrödinger Operators

Atsuhide Ishida, József Lőrinczi, Itaru Sasaki

We consider non-local Schrödinger operators with kinetic terms given by several different types of functions of the Laplacian and potentials decaying to zero at infinity, and deriv…

math.SP2012

Multiplicity of the lowest eigenvalue of non-commuatative harmonic oscillators

Fumio Hiroshima, Itaru Sasaki

The multiplicity of the lowest eigenvalue E of the so-called non-commutative harmonic oscillator Q(α,β) is studied. It is shown that E is simple for αand βin some region.