65 citations · 165 across the 14 of their papers we have counts for
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math.SP2015
Large bi-diagonal matrices and random perturbations
Johannes Sjoestrand, Martin Vogel
This is a first paper by the authors dedicated to the distribution of eigenvalues for random perturbations of large bidiagonal Toeplitz matrices.
math.SP2015
Non-real Eigenvalues for PT-Symmetric Double Wells
Amina Benbernou, Naima Boussekkine, Nawal Mecherout +2
We study small, PT-symmetric perturbations of self-adjoint double-well Schrödinger operators in dimension . We prove that the eigenvalues stay real for a very small pertur…