32 citations · 32 across the 1 of their papers we have counts for
3 papers
gr-qc2007★ 32 cited
A framework for large-scale relativistic simulations in the characteristic approach
Roberto Gómez, Willians Barreto, Simonetta Frittelli
We present a new computational framework (LEO), that enables us to carry out the very first large-scale, high-resolution computations in the context of the characteristic approach…
gr-qc2000
Singularities of wavefronts and lightcones in the context of GR via null foliations
Simonetta Frittelli, Ezra T. Newman
We describe an approach to the issue of the singularities of null hypersurfaces, due to the focusing of null geodesics, in the context of the recently introduced formulation of GR…
gr-qc1998
A variational principle for time of arrival of null geodesics
Simonetta Frittelli, Ezra T. Newman
Normally the issue or question of the time of arrival of light rays at an observer coming from a given source is associated with Fermat's Principle of Least Time which yields paths…