Initial data in numerical relativity. The constraints are formulated as elliptic equations, parabolic equations and strongly hyperbolic equations. This presentation is about a different approach to initial data for black holes, the strongly hyperbolic method.
Babiuc M, Winicour J, and I Racz (2016, April). A hyperbolic solver for black hole initial data in numerical relativity. Slides presented at APS April Meeting 2016, Salt Lake City, UT.