Scale invariant theory for Bianchi Type VIII and IX space-times with perfect fluid期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Scale invariant theory for Bianchi Type VIII and IX space-times with perfect fluid

Authors:	G Mohanty B Mishra

Institution:	(1) School of Mathematical Sciences, Sambalpur University, Jyoti Vihar, 768019 Sambalpur, Orissa, India;(2) Institute of Business & Computer Studies, 644/3019, Jagamara, Bhubaneswar, 751030 Orissa, India

Abstract:	In this paper we have taken an attempt to study the feasibility of scale invariant theory (Wesson, 1981a,b) in Bianchi type VIII and IX space-times with a time dependent gauge function (Dirac Gauge i.e. βα $\tfrac{1}{t}$ )and a matter field in the form of a perfect fluid. It is found that Bianchi type VIII (δ=1) space-time is feasible in this theory whereas Bianchi type IX (δ=-1) space-time is not feasible. In this feasible case a radiating model is constructed and its physical behaviour is discussed. This revised version was published online in July 2006 with corrections to the Cover Date.

Keywords:	perfect fluid energy-density isotropy Dirac Gauge space-timeMS Classification Number (1991): 83D05PACS Number (1983): 04 50+h
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