G. FERRARESE e L. STAZI
Riferimenti generalizzati in relativitÓ
Received: 30 December 1996
AMS Classification: 85C05
Abstract We study the main properties of a relativistic frame of reference, generalized in the polar sense , and the related non-holonomic techniques, in terms of non-orthogonal projections: first order characteristic tensors, Ricci rotation coefficients, longitudinal and transversal covariant derivatives. Thus, the first order properties of a standard frame of reference, are extended to the non-orthogonal case.