Generalized Dirac operators on lorentzian manifolds and propagation of singularities
Generalized plane wave manifolds
Geodesic reflections in semi-Riemannian geometry
Geodesically complete Lorentzian metrics on some homogeneous 3 manifolds.
Geodesics on Lorentzian manifolds with quasi-convex boundary.
Geodesics on non static Lorentz manifolds of Reissner-Norström type.
Geodesics on nonstatic Lorentz manifolds of Reissner-Nordstrom type (Erratum).
Geodesics on product lorentzian manifolds
Geometric structure of tubes and bands of zero mean curvature.
Geometrical interpretation of the sinh-Gordon equation
Global eikonal condition for Lorentzian distance function in noncommutative geometry.
Globally hyperbolic Lorentzian spaces with special holonomy groups.
Gravitational scattering of electromagnetic field by Schwarzschild black-hole
Groupes conformes en relativité générale
Harmonic curvatures in Lorentzian space.
Harmonic maps of Lorentz surfaces, quadratic differentials and paraholomorphicity.
Harmonicity of vector fields on four-dimensional generalized symmetric spaces
Let (M = G/H;g)denote a four-dimensional pseudo-Riemannian generalized symmetric space and g = m + h the corresponding decomposition of the Lie algebra g of G. We completely determine the harmonicity properties of vector fields belonging to m. In some cases, all these vector fields are critical points for the energy functional restricted to vector fields. Vector fields defining harmonic maps are also classified, and the energy of these vector fields is explicitly calculated.
Higher order Ossermann pseudo-Riemannian manifolds of neutral signature .
Holonomy and projective equivalence in 4-dimensional Lorentz manifolds.
Holonomy theory and 4-dimensional Lorentz manifolds.