Inhomogeneous string cosmological model of Bianchi type-I in general relativity

被引:0
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作者
Poonia, Laxmi [1 ]
Kumawat, Sunil [1 ]
机构
[1] Manipal Univ, Dept Math & Stat, Dehmi Kalan, India
来源
关键词
Cosmic string; Inhomogeneous universe; Cylindrically symmetric; Higher-dimensional universe;
D O I
10.1007/s43538-024-00246-5
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
An investigation is conducted into a higher-dimensional maximally symmetric inhomogeneous Bianchi type-I string cosmological model. In order to arrive at a deterministic solution, we have to assume Einstein string space metric depends on two variables in all four directions, and these variables are related to the condition: a(x,t) = L b(x,t), where L is a constant, and b(x,t) = f(x).g(t) This allows us to achieve a deterministic answer. g(t) and c(x,t) = h(x).k(t). The relationship between scalar expansion metric potential and shear tension is a straightforward one. In addition to this, the physical and geometrical characteristics of the higher dimensional string model of the universe are dissected.
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页码:702 / 705
页数:4
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