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- Mirta Iriondo, Enzo O. LeguizamÃ³n, Oscar Reula
- 1998

We apply recent results in the theory of PDE, specifically in problems with two different time scales, on Einsteinâ€™s equations near their Newtonian limit. The results imply a justification toâ€¦ (More)

- Mirta Iriondo, Osti Enzo, LeguizamÃ³n, Alberto Oscar, Reula
- 1998

We study the dynamics of Einstein's equations in Ashtekar's variables from the point of view of the theory of hyperbolic systems of evolution equations. We extend previous results and show that by aâ€¦ (More)

The problem of existence of spacelike hypersurfaces with constant mean curvature in asymptotically flat spacetimes is considered for a class of asymptotically Schwarzschild spacetimes satisfying anâ€¦ (More)

- Mirta Iriondo, Oscar Reula
- 2008

We perform a numerical free evolution of a selfgravitating, spherically symmetric scalar field satisfying the wave equation. The evolution equations can be written in a very simple form and areâ€¦ (More)

- Mirta Iriondo, Enzo O. LeguizamÃ³n, Oscar Reula
- 2008

By suitably re-scaling the conformal Einsteinâ€™s equations we are able to apply recent results in the theory of PDE, and prove that they possess slow solutions in a future neighborhood of an initialâ€¦ (More)

It is shown that the integrability conditions that arise in the Null Surface Formulation (NSF) of general relativity (GR) impose a field equation on the local null surfaces which is equivalent to theâ€¦ (More)

- Florencia Parisi, Mariana CÃ©cere, Mirta Iriondo, Oscar Reula
- J. Sci. Comput.
- 2015

In this article we develop a numerical scheme to deal with interfaces between touching numerical grids when solving the second-order wave equation. We show that it is possible to implement anâ€¦ (More)

- Mirta Iriondo, Enzo O. LeguizamÃ³n, Oscar Reula
- 2008

In eprint gr-qc/9901053 Gen Yoneda and Hisa-aki Shinkai have made several claims disputing our results in [1], and [2]. We show here that these claims are not correct. The authors begun mentioningâ€¦ (More)

- Emanuel Gallo, Mirta Iriondo, Carlos N. Kozameh
- 2004

Using Cartanâ€™s equivalence method for point transformations we obtain from first principles the conformal geometry associated with third order ODEs and a special class of PDEs in two dimensions. Weâ€¦ (More)

- Emanuel Gallo, Mirta Iriondo, Carlos N. Kozameh
- 2004

Using Cartanâ€™s equivalence method for point transformations we obtain from first principles the conformal geometry associated with third order ODEs and a special class of PDEs in two dimensions. Weâ€¦ (More)

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