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SUMMARY:Emil Wiedemann (Ulm university\, Germany)
DTSTART:20200924T093000Z
DTEND:20200924T103000Z
DTSTAMP:20260423T004659Z
UID:WOPARA/2
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/WOPARA/2/">W
 eak and measure-valued solutions of the compressible Euler equations.</a>\
 nby Emil Wiedemann (Ulm university\, Germany) as part of Webinar on PDE an
 d related areas\n\n\nAbstract\nSeveral notions of weak or “very weak” 
 solutions have been sug-gested  for  the  incompressible  and  compressibl
 e  Euler  systems\,  motivated  bythe lack of a satisfactory well-posednes
 s theory for these equations in turbulentregimes.  Surprisingly\, the spea
 ker and L. Sz ́ekelyhidi showed in 2012 that dis-tributional and measure-
 valued solutions are in a sense the same\, although thelatter  had  been  
 expected  to  be  a  much  weaker  notion.   In  this  talk\,  we  turnto 
 the isentropic compressible Euler system\, where the situation is fundamen
 -tally  different.   Joint  work  with  E.  Chiodaroli\,  E.  Feireisl\,  
 O.  Kreml\,  and  D.Gallenmuller.\n
LOCATION:https://researchseminars.org/talk/WOPARA/2/
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