Physics – Mathematical Physics
Scientific paper
2009-06-28
OCAMI (Osaka City University Advanced Mathematical Institute) Study Series, V. 3, 2010, pp. 171-185
Physics
Mathematical Physics
15 pages, 2 figures
Scientific paper
We consider the Moutard transformation which is a two-dimensional version of the well-known Darboux transformation. We give an algebraic interpretation of the Moutard transformation as a conjugation in an appropriate ring and the corresponding version of the algebro-geometric formalism for two-dimensional Schroedinger operators. An application to some problems of the spectral theory of two-dimensional Schroedinger operators and to the $(2+1)$-dimensional Novikov--Veselov equation is sketched.
Taimanov Iskander A.
Tsarev Sergey P.
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