학술논문

Classification of non-conformally flat static plane symmetric perfect fluid solutions via proper conformal vector fields in f(T) gravity.
Document Type
Article
Source
International Journal of Geometric Methods in Modern Physics. Dec2020, Vol. 17 Issue 14, pN.PAG-N.PAG. 11p.
Subject
*VECTOR fields
*EINSTEIN field equations
*GRAVITY
*SPACETIME
Language
ISSN
0219-8878
Abstract
The aim of this paper is to classify non-conformally flat static plane symmetric (SPS) perfect fluid solutions via proper conformal vector fields (CVFs) in f (T) gravity. For this purpose, first we explore some SPS perfect fluid solutions of the Einstein field equations (EFEs) in f (T) gravity. Second, we utilize these solutions to find proper CVFs. In this study, we found 16 cases. A detailed study of each case reveals that in three of these cases, the space-times admit proper CVFs whereas in the rest of the cases, either the space-times become conformally flat or they admit proper homothetic vector fields (HVFs) or Killing vector fields (KVFs). The dimension of CVFs for non-conformally flat space-times in f (T) gravity is four, five or six. [ABSTRACT FROM AUTHOR]