TY  - JOUR
AU  - Fernández-Rañada, Antonio
PY  - 1980
DO  - 10.1103/PhysRevD.22.385
SN  - 0556-2821
UR  - https://hdl.handle.net/20.500.14352/64904
T2  - Physical Review D
AB  - A characterization of the noncausal behavior of a covariant wave equation is given in terms of the invariance of the hyperbolicity conditions. Some examples in which the Dirac field is not causal are studied.
LA  - eng
M2  - 385
PB  - American Physical Society
TI  - Causality of a wave-equation and invariance of its hyperbolicity conditions
TY  - journal article
VL  - 22
ER  -