Mathematics – Analysis of PDEs
Scientific paper
2011-04-13
J. Phys. A: Math. Theor. 44 (2011) 475201
Mathematics
Analysis of PDEs
Scientific paper
A version of the binary Darboux transformation is constructed for non-stationary Schroedinger equation in dimension $k+1$, where $k$ is the number of space variables, $k \geq 1$. This is an iterated GBDT version. New families of non-singular and rational potentials and solutions are obtained. Some results are new for the case that $k=1$ too. A certain generalization of a colligation introduced by M.S. Livsic and of the $S$-node introduced by L.A. Sakhnovich is successfully used in our construction.
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