Two-dimensional von Neumann--Wigner potentials with a multiple positive eigenvalue

Autor: Novikov, R. G., Taimanov, I. A., Tsarev, S. P.
Rok vydání: 2013
Předmět:
Zdroj: Functional Anal. Appl. 48:4 (2014), 295-297
Druh dokumentu: Working Paper
Popis: 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.
Comment: 4 pages
Databáze: arXiv