String Cloud and Domain Walls with Quark Matter in Lyra Geometry

Abstract

We have constructed cosmological models for string cloud and domain walls coupled with quark matter in Lyra geome-try. For this purpose we have solved the field equations using anisotropy feature of the universe, special law of variation for Hubble's parameter proposed by Berman [78] which yields constant deceleration parameter; and time varying dis-placement field  . Further some properties of the obtained solutions are discussed.