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math.SP2019
Location of eigenvalues of non-self-adjoint discrete Dirac operators
Biagio Cassano, Orif O. Ibrogimov, David Krejcirik +1
We provide quantitative estimates on the location of eigenvalues of one-dimensional discrete Dirac operators with complex -potentials for . As a corollar…
math-ph2019
Self-adjoint extensions of the two-valley Dirac operator with discontinuous infinite mass boundary conditions
Biagio Cassano, Vladimir Lotoreichik
We consider the four-component two-valley Dirac operator on a wedge in with infinite mass boundary conditions, which enjoy a flip at the vertex. We show that it has…