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DTSTART:20201101T020000
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UID:calendar.1366590.field_date.0@bhi.fas.harvard.edu
DTSTAMP:20210806T035444Z
DESCRIPTION:\n Jonathan Luk (Mathematics) \;- Stanford University\n\n\n
\n \n\n\n\n Title: High-frequency limits in general relativity and a conject
ure of Burnett\n\n\n\n Abstract: It is known in the literature that ”high-f
requency weak limits” of solutions to the Einstein vacuum equations are no
t necessarily vacuum solutions\, but may have a non-trivial stress-energy-
momentum tensor\, which can be viewed physically as ”effective matter fiel
ds” arising from back-reaction of high-frequency gravitational waves. Burn
ett conjectured nonetheless that any such limit is isometric to a solution
to the Einstein-massless Vlasov system\; and conversely that any solution
to the Einstein-massless Vlasov system arises as such limit. We discuss s
ome recent progress on Burnett’s conjecture\, as well as an application of
it. This talk is based on joint works with Huneau\, and with Rodnianski.
\n\n\n\n Bio: \;Jonathan Luk is an Associate Professor at the Stanford
University Department of Mathematics. \; He received his PhD in Mathem
atics from Princeton University in 2012. \; His research interests are
nonlinear partial differential equations\, general relativity\, and mathe
matical physics. \; \n\n\n\n \;\n\n\n\n \;\n\n\n\n Link to Zoom
\n\n
DTSTART;TZID=America/New_York:20201013T133000
DTEND;TZID=America/New_York:20201013T143000
LAST-MODIFIED:20210308T192727Z
LOCATION:Zoom link in description
SUMMARY:BHI Colloquium
URL;TYPE=URI:https://bhi.fas.harvard.edu/event/bhi-colloquium-34
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