Quantum information from graviton-matter gas.
Quantum spacetime
Quantum spacetime: a disambiguation.
Quantum structures in Galilei general relativity
Quantum vacuum polarization at the Black-Hole horizon
Quasilinear differential equations in exterior domains with nonlinear boundary conditions and application.
Quasi-local energy-momentum and angular momentum in general relativity.
Quasi-local energy-momentum and the Sen geometry of two-surfaces
We review the main ideas of the two dimensional Sen geometry and apply these concepts i. in finding the `most natural' quasi-local energy-momentum, ii. in characterizing the zero energy-momentum and zero mass configurations and iii. in finding the quasi-local radiative modes of general relativity.
Quasi-normal modes of stars and black holes.
Recursions of symmetry orbits and reduction without reduction.
Regular and chaotic regimes in scalar field cosmology.
Regularity and geometric properties of solutions of the Einstein-Vacuum equations
We review recent results concerning the study of rough solutions to the initial value problem for the Einstein vacuum equations expressed relative to wave coordinates. We develop new analytic methods based on Strichartz type inequalities which results in a gain of half a derivative relative to the classical result. Our methods blend paradifferential techniques with a geometric approach to the derivation of decay estimates. The latter allows us to take full advantage of the specific structure of...
Relativistic and nonrelativistic elastodynamics with small shear strains
Relativistic short range phenomena and space-time aspects of pulse measurements.
Relativistic significance of curvature tensors.
Relativistic stochastic processes associated to Klein-Gordon equation
Relativity and irreversibility.
Relativity in the global positioning system.
Relativity, spherical functions and the hypergeometric equation
Remarks on the ambiguity of distance determination in Friedmann's cosmological model