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SUMMARY:Sergey Denisov (University of Wisconsin-Madison)
DTSTART:20201125T150000Z
DTEND:20201125T160000Z
DTSTAMP:20260423T022917Z
UID:DSandPDEs/4
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/DSandPDEs/4/
 ">Singularity formation in the contour dynamics for 2d Euler equation on t
 he plane</a>\nby Sergey Denisov (University of Wisconsin-Madison) as part 
 of Dynamical systems and PDEs\n\n\nAbstract\nWe will study 2d Euler dynami
 cs of centrally symmetric pair of patches on the plane. In the presence of
  exterior regular velocity\, we will show that these patches can merge so 
 fast that the distance between them allows double-exponential upper bound 
 which is known to be sharp. The formation of the 90 degree corners on the 
 interface and the self-similarity analysis of this process will be discuss
 ed. For a model equation\, we will discuss existence of the curve of smoot
 h stationary solutions that originates at singular stationary steady state
 .\n
LOCATION:https://researchseminars.org/talk/DSandPDEs/4/
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