Rapidities and observable 3-velocities in the flat Finslerian event space with entirely broken 3D isotropy.
Remarks on the ambiguity of distance determination in Friedmann's cosmological model
Riemann-Lagrange geometrical background for multi-time physical fields.
Some Friedmann cosmological solutions in the scale covariant theory of gravitation.
Space-times admitting a covariantly constant spinor field
Spinors on in supergravity
Stable bundles on hypercomplex surfaces
A hypercomplex manifold is a manifold equipped with three complex structures I, J, K satisfying the quaternionic relations. Let M be a 4-dimensional compact smooth manifold equipped with a hypercomplex structure, and E be a vector bundle on M. We show that the moduli space of anti-self-dual connections on E is also hypercomplex, and admits a strong HKT metric. We also study manifolds with (4,4)-supersymmetry, that is, Riemannian manifolds equipped with a pair of strong HKT-structures that have opposite...
Stable Minimal Surfaces and Spatial Topology in General Relativity.
Stationary states
Sui fondamenti dell’ottica relativistica
Il lavoro deduce, in ambito relativistico, le proprietà fondamentali di un flusso luminoso (congruenza nulla) mediante tecniche anolonome reali [2,3] e precisamente: caratteristiche geometrico-cinematiche del flusso (assolute e relative), teorema di Sachs [6] e proprietà dei nastri luminosi, con particolare riguardo ai parametri ottici e di deformazione, in spazi-tempo particolari (stazionarietà relativa, flussi geodetici, riferimenti trasportati per parallelismo dalla luce).
Superconnections: an interpretation of the standard model.
Sur les fibrés d'objets géométriques et leurs applications physiques
Symmetric space Cartan connections and gravity in three and four dimensions.
Synge-Beil and Riemann-Jacobi jet structures with applications to physics.
The Cauchy problem for Lorentz metrics with prescribed Ricci curvature
The cohomology groups
The Gap Phenomena of Yang-Mills Fields over the Complete Manifold.
The geometrical interpretation of temporal cone norm in almost Minkowski manifold.
The geometry of autonomous metrical multi-time Lagrange space of electrodynamics.
The graded differential geometry of mixed symmetry tensors
We show how the theory of -manifolds - which are a non-trivial generalisation of supermanifolds - may be useful in a geometrical approach to mixed symmetry tensors such as the dual graviton. The geometric aspects of such tensor fields on both flat and curved space-times are discussed.