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The Euler equations and nonlocal conservative Riccati equations. (English) Zbl 0970.76017

The author constructs exact solutions for three-dimensional Euler equations. The solutions are considered in the form \((u_1(x,y,t), u_2(x,y,t), z\gamma(x,y,t))\) with scalar function \(\gamma\) satisfying a nonlocal Riccati equation. It is shown that there exist smooth initial data for which periodic in \(x,y\) solutions have infinite kinetic energy and blow-up at finite time.

MSC:

76B03 Existence, uniqueness, and regularity theory for incompressible inviscid fluids
35Q35 PDEs in connection with fluid mechanics