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arxiv: 1612.03662 · v2 · pith:QAU5HYIGnew · submitted 2016-12-12 · 🧮 math.AP

On the rate of merging of vorticity level sets for the 2D Euler equations

classification 🧮 math.AP
keywords equationseulerlevelratesetsvorticityalongapproach
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We show that two distinct level sets of the vorticity of a solution to the 2D Euler equations on a disc can approach each other along a curve at an arbitrarily large exponential rate.

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