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Fast growth of the vorticity gradient in symmetric smooth domains for 2D incompressible ideal flow. (English) Zbl 1339.35251
Summary: We construct initial data for the two-dimensional Euler equation in a bounded smooth symmetric domain such that the gradient of vorticity in $$L^\infty$$ grows as a double exponential in time, for all time. Our construction is based on the recent result by A. Kiselev and V. Šverák [Ann. Math. (2) 180, No. 3, 1205–1220 (2014; Zbl 1304.35521)].

##### MSC:
 35Q35 PDEs in connection with fluid mechanics 76B03 Existence, uniqueness, and regularity theory for incompressible inviscid fluids
##### Keywords:
2D Euler equation; hyperbolic flow; Green function
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##### References:
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