In this paper we identify an ambiguous statement appearing in the Physics literature, called 'tetrad postulate' and which may produce nonsense if care is not taken. We identify the genesis of theâ€¦ (More)

We show that diffeomorphism invariance of the Maxwell and the Dirac-Hestenes equations implies the equivalence among different universe models such that if one has a linear connection with nonnullâ€¦ (More)

We present the theory, the experimental evidence, and fundamental physical consequences concerning the existence of families of undistorted progressive waves (UPWs) of arbitrary speeds 0 â‰¤ v < âˆž,â€¦ (More)

The main objective of this paper is to clarify the ontology of DiracHestenes spinor fields (DHSF ) and its relationship with sum of even multivector fields, on a Riemann-Cartan spacetime (RCST) Mâ€¦ (More)

Almost all presentations of Dirac theory in first or second quantization in Physics (and Mathematics) textbooks make use of covariant Dirac spinor fields. An exception is the presentation of thatâ€¦ (More)

Almost all presentations of Dirac theory in first or second quantization in Physics (and Mathematics) textbooks make use of covariant Dirac spinor fields. An exception is the presentation of thatâ€¦ (More)

The main objective of this paper is to clarify the ontology of DiracHestenes spinor fields (DHSF ) and its relationship with sum of even multivector fields, on a general Riemann-Cartan spacetimeâ€¦ (More)

In this paper using the Clifford bundle formalism a Lagrangian theory of the Yang-Mills type (with a gauge fixing term and an auto interacting term) for the gravitational field in Minkowski spacetimeâ€¦ (More)

Almost all presentations of Dirac theory in first or second quantiza-tion in Physics (and Mathematics) textbooks make use of covariant Dirac spinor fields. An exception is the presentation of thatâ€¦ (More)

Among the many alternative mathematical systems in which the Dirac equation can be written [1â€“7], we showed in a recent paper [8] how the matrix and vector algebras can be replaced by a singleâ€¦ (More)