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Young measures generated by ideal incompressible fluid flows. (English) Zbl 1256.35072
Summary: In their seminal paper, R. J. DiPerna and A. J. Majda [Commun. Math. Phys. 108, 667–689 (1987; Zbl 0626.35059)] introduced the notion of a measure-valued solution for the incompressible Euler equations in order to capture complex phenomena present in limits of approximate solutions, such as persistence of oscillation and development of concentrations. Furthermore, they gave several explicit examples exhibiting such phenomena. In this paper we show that any measure-valued solution can be generated by a sequence of exact weak solutions. In particular this gives rise to a very large, arguably too large, set of weak solutions of the incompressible Euler equations.

##### MSC:
 35Q31 Euler equations 35D30 Weak solutions to PDEs 35R06 PDEs with measure
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##### References:
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