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UID:91fc8432cdc6be1f251db8165faa04f5
CATEGORIES:Nonlinear Analysis
CREATED:20260809T154059
SUMMARY:Gilbert Weinstein: Kerr Black Hole Uniqueness
LOCATION:Hill 705
DESCRIPTION:Abstract:  \nThe no-hair theorem states that the only asymptotically flat s
 tationary solutions of the Einstein vacuum equations are members of the Ker
 r family, parametrized by mass and angular momentum. Hawking’s rigidity the
 orem shows that under the hypothesis of analyticity, any such solution is a
 xially symmetric. For axially symmetric solutions with a single connected e
 vent horizon, Robinson (1975) proved that the solution must be Kerr. Howeve
 r, the case of multiple black holes has remained largely open. We settle th
 is longstanding problem and show that stationary, axially symmetric multipl
 e black holes cannot be in equilibrium by studying the associated harmonic 
 maps with prescribed singularities. This is joint work with Qing Han, Marcu
 s Khuri, and Jingang Xiong.\n
X-ALT-DESC;FMTTYPE=text/html:<p>Abstract:&nbsp;&nbsp;</p><p data-olk-copy-source="MessageBody">The no-ha
 ir theorem states that the only asymptotically flat stationary solutions of
  the Einstein vacuum equations are members of the Kerr family, parametrized
  by mass and angular momentum. Hawking’s rigidity theorem shows that under 
 the hypothesis of analyticity, any such solution is axially symmetric. For 
 axially symmetric solutions with a single connected event horizon, Robinson
  (1975) proved that the solution must be Kerr. However, the case of multipl
 e black holes has remained largely open. We settle this longstanding proble
 m and show that stationary, axially symmetric multiple black holes cannot b
 e in equilibrium by studying the associated harmonic maps with prescribed s
 ingularities. This is joint work with Qing Han, Marcus Khuri, and Jingang X
 iong.</p>
CONTACT:Ariel University
DTSTAMP:20260828T183200
DTSTART;TZID=America/New_York:20260908T134000
DTEND;TZID=America/New_York:20260809T144000
SEQUENCE:0
TRANSP:OPAQUE
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