Exact Cosmological Models with Yang–Mills Fields on Lyra Manifold

Resumo

The present study deals with the Friedmann-Robertson-Walker cosmological models with Yang–Mills (YM) fields in Lyra geometry. The energy-momentum tensor of the YM fields for our models is obtained with the help of an exact solution to the YM equations with minimal coupling to gravity. Two specific exact solutions of the model are obtained regarding the effective equation of state and the exponential law of expansion. The physical and geometric behavior of the model is also discussed.