Steen – Ermakov – Pinney equation and integrable nonlinear deformation of one-dimensional Dirac equation von Prykarpatsky, Y.A.

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The generalized De Rham-Hodge theory of Delsarte transmutation operators in multidimension case and its applications von Prykarpatsky, Y.A., Samoilenko, A.M.

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On the Lagrangian and Hamiltonian aspects of infinite-dimensional dynamical systems and their finite-dimensional reductions von Prykarpatsky, Y.A., Samoilenko, A.M.

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