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Article

Frequency Spectrum of Exact Solutions of the Two-Dimensional Hydrodynamic Equations

Radiophysics and Quantum Electronics. 2016. Vol. 58. No. 11. P. 852-857.
Abrashkin A. A., Yakubovich E. I.

We show that the discrete frequency spectrum of a plane hydrodynamic flow of ideal incompressible liquid with localized trajectories of the liquid particles can contain only one, two, or an infinite number of harmonics.