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1 CMAP - Centre de Mathématiques Appliquées - Ecole Polytechnique 2 Sobolev Institute of Mathematics 3 Siberian Federal University, Institute of Space and Information Technologies

Abstract : By the Moutard transformation method we construct two-dimensional Schrodinger operators with real smooth potential decaying at infinity and with a multiple positive eigenvalue. These potentials are rational functions of spatial variables and their sines and cosines.





Author: Roman Novikov - Iskander Taimanov - Sergey Tsarev -

Source: https://hal.archives-ouvertes.fr/



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