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Article

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

Radiophysics and Quantum Electronics. 2015. Vol. 58. No. 11. P. 852-857.
A. A. Abrashkin, E. Yakubovich.

It is shown that the discrete frequency spectrum of the plane hydrodynamic flow of an ideal incompressible liquid with localized trajectories of liquid particles can contain only one harmonic, two harmonics, or an infinite number of the latter.