3 papers
math.DG2005
and Lipschitz structures on products of manifolds
Marcin Bobienski, Andrzej Trautman
The topological condition for the existence of a structure on the product of two Riemannian manifolds is derived and applied to construct examples of manifolds having the w…
math.DG2002
Robinson Manifolds as the Lorentzian Analogs of Hermite Manifolds
Pawel Nurowski, Andrzej Trautman
A Lorentzian manifold is defined here as a smooth pseudo-Riemannian manifold with a metric tensor of signature ((2n +1, 1)). A Robinson manifold is a Lorentzian manifold (M) of dim…
math.DG1999
Spin spaces, Lipschitz groups, and spinor bundles
Thomas Friedrich, Andrzej Trautman
It is shown that every bundle of complex spinor modules over the Clifford bundle $\Cl(g)$ of a Riemannian space with local model is associated with…