L. Rezzolla et al., WAVE-FORM PROPAGATION IN BLACK-HOLE SPACETIMES - EVALUATING THE QUALITY OF NUMERICAL-SOLUTIONS, Physical review. D. Particles and fields, 57(2), 1998, pp. 1084-1091
We compute the propagation and scattering of linear gravitational wave
s off a Schwarzschild black hole using a numerical code which solves a
generalization of the Zerilli equation to a three-dimensional Cartesi
an coordinate system. Since the solution to this problem is well under
stood it represents a very good testbed for evaluating our ability to
perform three-dimensional computations of gravitational waves in space
times in which a black hole event horizon is present.