BEGIN:VCALENDAR VERSION:2.0 PRODID:-//linuxsoftware.nz//NONSGML Joyous v1.4//EN BEGIN:VEVENT SUMMARY:Peeling in Generalized Harmonic Gauge DTSTART:20220217T143000Z DTEND:20220217T163000Z DTSTAMP:20260626T124158Z UID:3f248275-0ebf-40a0-bb0f-a9fdf2a8a29e SEQUENCE:1 CREATED:20220214T102354Z DESCRIPTION:Abstract:Starting from a generalization of the good-bad-ugly m odel\, we showed that the solutions to the Einstein field equations in gen eralized harmonic gauge (GHG) admit polyhomogeneous expansions near null i nfinity. This allows us to find out\, under a very general class of initia l data\, whether the peeling property holds for each gauge choice. In gene ral\, we find that it does not. However we find that the interplay between gauge and constraint addition can be exploited in order to recover peelin g. The same method can be used to build a regularization of the Einstein f ield equations in GHG. LAST-MODIFIED:20220214T102354Z LOCATION:Sala de Seminários do DF\, Pavilhão de Física\, 2º piso URL:http://df.vps.tecnico.ulisboa.pt/pt/eventos/peeling-in-generalized-har monic-gauge/ X-ALT-DESC;FMTTYPE=text/html:

Abstract:
Starting from a generalization of the good-bad-ugly model\, we showed th at the solutions to the Einstein field equations in generalized harmonic g auge (GHG) admit polyhomogeneous expansions near null infinity. This allow s us to find out\, under a very general class of initial data\, whether th e peeling property holds for each gauge choice. In general\, we find that it does not. However we find that the interplay between gauge and constrai nt addition can be exploited in order to recover peeling. The same method can be used to build a regularization of the Einstein field equations in G HG.

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