Nonlinear spinor field in Bianchi type-I Universe filled with perfect fluid: Exact self-consistent solutions

Self-consistent solutions to nonlinear spinor field equations in general relativity have been studied for the case of Bianchi type-I space-time filled with perfect fluid. The initial and the asymptotic behaviors of the field functions and the metric one have been thoroughly studied. The absence of initial singularity for some types of solutions and also the isotropic mode of space-time expansion in some special cases should be emphasized. © 1997 American Institute of Physics.