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math-ph2012★ 7 cited
Equidistance of the Complex 2-Dim Anharmonic Oscillator Spectrum: Exact Solution
F. Cannata, M. V. Ioffe, D. N. Nishnianidze
We study a class of quantum two-dimensional models with complex potentials of specific form. They can be considered as the generalization of a recently studied model with quadratic…
math-ph2002★ 16 cited
Nonlinear Supersymmetric (Darboux) Covariance of the Ermakov-Milne-Pinney Equation
M. V. Ioffe, H. J. Korsch
It is shown that the nonlinear Ermakov-Milne-Pinney equation obeys the property of covariance under a class of transformations of its coefficient fun…