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X-WR-CALDESC:évènements pour Département de mathématiques et applications
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TZID:Europe/Paris
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TZOFFSETFROM:+0100
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DTSTART:20130331T010000
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DTSTART:20131027T010000
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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20130108T103000
DTEND;TZID=Europe/Paris:20130108T113000
DTSTAMP:20260410T041159
CREATED:20130108T093000Z
LAST-MODIFIED:20211104T092636Z
UID:8097-1357641000-1357644600@www.math.ens.psl.eu
SUMMARY:The blow-up criterion for the compressible  Navier-Stokes equations
DESCRIPTION:We prove a blow-up criterion in terms of the upper bound ofthe density for the strong solution to the 3-D compressible Navier-Stokesequations. The initial vacuum is allowed. The main ingredient of theproof is a priori estimate for an important quantity under the assumptionthat the density is upper bounded\, whose divergence can be viewed asthe effective viscous flux.
URL:https://www.math.ens.psl.eu/evenement/the-blow-up-criterion-for-the-compressible-navier-stokes-equations/
LOCATION:IHP salle 201
CATEGORIES:Séminaire Analyse non linéaire et EDP
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20130108T113000
DTEND;TZID=Europe/Paris:20130108T123000
DTSTAMP:20260410T041159
CREATED:20130108T103000Z
LAST-MODIFIED:20211104T092637Z
UID:8098-1357644600-1357648200@www.math.ens.psl.eu
SUMMARY:Matched Layers\, Perfect and Otherwise
DESCRIPTION:Some twenty years ago Berenger introduced theremarkable method of perfectly matchedlayers for truncating to a rectangle\, the computation ofsolutions of Maxwell’s equations in 1+2 and 1+3 dimensionalspace time.  Only recently have some of the fundamentalquestions concerning this method been resolved.For example the stability of the original methodand its perfection.  We discuss the analysis of thisand related methods that are constructed to performbetter in variable coefficient settings where the perfectionof Berenger no longer holds.  Research donewith Laurence Haplern\, Sabrina Petit\, and LudovicMetivier.
URL:https://www.math.ens.psl.eu/evenement/matched-layers-perfect-and-otherwise/
LOCATION:IHP salle 201
CATEGORIES:Séminaire Analyse non linéaire et EDP
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