Ao. Barut et Lp. Singh, DIRAC-EQUATION IN SPATIALLY NONFLAT ROBERTSON-WALKER SPACE-TIMES .2., International journal of modern physics D, 4(4), 1995, pp. 479-490
The Dirac equation is generalised to the Robertson-Walker space-time i
n a Cartesian tetrad gauge. Its relationship with the Dirac equation i
n the diagonal tetrad gauge is established. The time dependence of the
solution for different models of the expanding Universe is discussed.