Virtual Talk: Dual-Frame Generalized Harmonic Gauge on Hyperboloidal Slices

David Hilditch
Instituto Superior Tecnico, University of Lisbon

Both for studies of cosmic censorship and for practical purposes in gravitational wave astronomy, it is desirable to include future null-infinity in the computational domain. Extending formulations of general relativity known to behave well in the strong-field regime out to infinity with compactification is, however, a subtle game. In my presentation I will explain how the competition between decay of fields near infinity and growth of coefficients (due to compactification) plays out in dual-frame generalized harmonic gauge. I will discuss ongoing work towards the numerical implementation of the resulting PDEs.

Presentation (PDF File)

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