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gr-qc1998★ 4 cited
Null Surfaces and Legendre Submanifolds
Mirta Iriondo, Carlos Kozameh, Alejandra Rojas
It is shown that the main variable Z of the Null Surface Formulation of GR is the generating function of a constrained Lagrange submanifold that lives on the energy surface H=0 and…
gr-qc1998
On the dynamics of Einstein's equations in the Ashtekar formulation
Mirta S. Iriondo, Enzo O. Leguizamon, Oscar A. Reula
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…