Roberto Gómez

First-order quasilinear canonical representation of the characteristic formulation of the Einstein equations

We prescribe a choice of variables that casts the equations of the fully nonlinear characteristic formulation of general relativity in quasi-linear canonical form. A formulation of this type provides the possibility of further studies at the analytical level. In addition, it allows for the incorporation of advanced numerical techniques available for first order systems, which had not been applicable so far to the characteristic problem of the Einstein equations, and provides an appropriate framework for a unified treatment of the vacuum and matter problems.
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