Roberto Gomez

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HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt età la diffusion(More)
This paper gives a detailed pedagogic presentation of the central concepts underlying a new algorithm for the numerical solution of Einstein's equations for gravitation. This approach incorporates the best features of the two leading approaches to computational gravitation, carving up space-time via Cauchy hypersurfaces within a central worldtube, and using(More)
We present a characteristic algorithm for computing the perturbations of a Schwarzschild spacetime by means of solving the Teukolsky equations. Our methods and results are expected to have direct bearing on the study of binary black holes presently underway using a fully nonlinear characteristic code 1. Recent years have shown a vital synergism between(More)
—As the Internet users increase, the need to protect web servers from malicious users has become a priority in many organizations and companies. Writing crosscutting functions in complex software should take advantage of the modularity offered by new software development approaches. With Aspect­Oriented Programming (AOP), separating concerns when designing(More)
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