We develop a commuting vector field method for a general class of radiating spacetimes. The metrics we consider are modeled on those constructed from global nonlinear stability problems in general relativity, and our method provides sharp peeling estimates for solutions to both linear and (null form) nonlinear scalar fields.
"A vector field method for radiating black hole spacetimes." Anal. PDE 13 (1) 29 - 92, 2020. https://doi.org/10.2140/apde.2020.13.29