On approximation of solutions to some -dimensional integrable systems by Bäcklund transformations.
On classical series expansions for quasi-periodic motions.
On non-point invertible transformations of difference and differential-difference equations.
On some integrable cases in surface theory
On the GBDT Version of the Bäcklund-Darboux Transformation and its Applications to Linear and Nonlinear Equations and Weyl Theory
A general theorem on the GBDT version of the Bäcklund-Darboux transformation for systems depending rationally on the spectral parameter is treated and its applications to nonlinear equations are given. Explicit solutions of direct and inverse problems for Dirac-type systems, including systems with singularities, and for the system auxiliary to the N-wave equation are reviewed. New results on explicit construction of the wave functions for radial...
On the one class of hyperbolic systems.