2 papers
gr-qc2021
High Order Asymptotic Expansions of a Good-Bad-Ugly Wave Equation
Miguel Duarte, Justin Feng, Edgar Gasperin +1
A heuristic method to find asymptotic solutions to a system of non-linear wave equations near null infinity is proposed. The non-linearities in this model, dubbed good-bad-ugly, ar…
gr-qc2019
Conformally flat slices of asymptotically flat spacetimes
Miguel Duarte, David Hilditch
For mathematical convenience initial data sets in numerical relativity are often taken to be conformally flat. Employing the dual-foliation formalism, we investigate the physical c…