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SUMMARY:Asymptotics in General Relativity: the role of spatial infinity
DTSTART:20260205T143000Z
DTEND:20260205T160000Z
DTSTAMP:20260816T190345Z
UID:6c51f22c-1265-456d-bd78-1e5977648cc1
SEQUENCE:1
CREATED:20260126T154150Z
DESCRIPTION: In this overview talk I will discuss the relation between the
  asymptotic behaviour of the gravitational field at null infinity and spat
 ial infinity\, the so-called problem of spatial infinity. I will argue tha
 t the conditions assumed by Penrose in his programme to study isolated sys
 tems in General Relativity are too restrictive to describe generic spaceti
 mes.I will also discuss how a conformal approach to the study of the struc
 ture of spatial infinity offers the tantalising possibility of settling do
 wn the problem of spatial infinity\, thus providing us with a full underst
 anding of the way that Cauchy data determines the asymptotic behaviour of 
 the gravitational field. I will present some applications of these ideas t
 o the computation of asymptotic charges.  
LAST-MODIFIED:20260126T154150Z
LOCATION:DF Seminar Room (2-8.3)\, 2nd floor of Physics Building
URL:http://df.vps.tecnico.ulisboa.pt/en/events/asymptotics-in-general-rela
 tivity-the-role-of-spatial-infinity/
X-ALT-DESC;FMTTYPE=text/html:<p data-block-key="hul1k"> In this overview t
 alk I will discuss the relation between the asymptotic behaviour of the gr
 avitational field at null infinity and spatial infinity\, the so-called pr
 oblem of spatial infinity. I will argue that the conditions assumed by Pen
 rose in his programme to study isolated systems in General Relativity are 
 too restrictive to describe generic spacetimes.<br/><br/>I will also discu
 ss how a conformal approach to the study of the structure of spatial infin
 ity offers the tantalising possibility of settling down the problem of spa
 tial infinity\, thus providing us with a full understanding of the way tha
 t Cauchy data determines the asymptotic behaviour of the gravitational fie
 ld. I will present some applications of these ideas to the computation of 
 asymptotic charges.  </p>
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