Bianchi Type Ⅰ String Dust Magnetized Cosmological Models in Lyra Geometry  

作　　者：Raj Bali Naresh K.Chandnani Lokesh Kumar Gupta 

机构地区：[1]Department of Mathematics,University of Rajasthan

出　　处：《Communications in Theoretical Physics》2010年第7期197-202,共6页理论物理通讯（英文版）

摘　　要：Bianchi type I string dust cosmological models in the presence and absence of magnetic field in the frame work of Lyra geometry are investigated. To get the deterministic model of the universe, we assume that the eigenvalue （σ^11） of shear tensor （σ^ii） is proportional to expansion （θ）. This leads to A = （BC）^n, where A, B, C are metric potentials and n is a constant. To discuss the results in terms of cosmic time t, we have considered n = 1. The physical and geometrical aspects＇ of the models and singularities in the models are also discussed.

关 键 词：Bianchi I string dust MAGNETIZED COSMOLOGICAL Lyra geometry 

分 类 号：P159[天文地球—天文学] O18[理学—数学]