Dynamics of a Cosmological Model in <i>f</i>(<i>R</i>,<i>T</i>) Gravity: II. In Three-Dimensional Space

Based on the results discussed on the invariant planes in the known literature [Universe 2022, 8, 365] for the flat FLRW space-time universe model with ideal fluid under the gravity of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline">&...

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Main Authors: Jianwen Liu, Ruifang Wang, Fabao Gao
Format: Article
Language:English
Published: MDPI AG 2023-01-01
Series:Universe
Subjects:
Online Access:https://www.mdpi.com/2218-1997/9/1/49
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author Jianwen Liu
Ruifang Wang
Fabao Gao
author_facet Jianwen Liu
Ruifang Wang
Fabao Gao
author_sort Jianwen Liu
collection DOAJ
description Based on the results discussed on the invariant planes in the known literature [Universe 2022, 8, 365] for the flat FLRW space-time universe model with ideal fluid under the gravity of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>f</mi><mrow><mo>(</mo><mi>R</mi><mo>,</mo><mi>T</mi><mo>)</mo></mrow><mo>=</mo><mi>ξ</mi><msup><mi>R</mi><mi>α</mi></msup><mo>+</mo><mi>ζ</mi><msqrt><mrow><mo>−</mo><mi>T</mi></mrow></msqrt></mrow></semantics></math></inline-formula>, this paper continues to describe the global dynamics of this model in the three-dimensional space containing infinity through dynamic system analysis. Moreover, the cosmological solutions of all the physical significance regions restricted by three invariant planes are also fully discussed.
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spelling doaj.art-81fc9e9a4efe43b4b11823baf3198e1b2023-12-01T00:59:30ZengMDPI AGUniverse2218-19972023-01-01914910.3390/universe9010049Dynamics of a Cosmological Model in <i>f</i>(<i>R</i>,<i>T</i>) Gravity: II. In Three-Dimensional SpaceJianwen Liu0Ruifang Wang1Fabao Gao2School of Mathematical Science, Yangzhou University, Yangzhou 225002, ChinaSchool of Mathematical Science, Yangzhou University, Yangzhou 225002, ChinaSchool of Mathematical Science, Yangzhou University, Yangzhou 225002, ChinaBased on the results discussed on the invariant planes in the known literature [Universe 2022, 8, 365] for the flat FLRW space-time universe model with ideal fluid under the gravity of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>f</mi><mrow><mo>(</mo><mi>R</mi><mo>,</mo><mi>T</mi><mo>)</mo></mrow><mo>=</mo><mi>ξ</mi><msup><mi>R</mi><mi>α</mi></msup><mo>+</mo><mi>ζ</mi><msqrt><mrow><mo>−</mo><mi>T</mi></mrow></msqrt></mrow></semantics></math></inline-formula>, this paper continues to describe the global dynamics of this model in the three-dimensional space containing infinity through dynamic system analysis. Moreover, the cosmological solutions of all the physical significance regions restricted by three invariant planes are also fully discussed.https://www.mdpi.com/2218-1997/9/1/49<i>f</i>(<i>R</i>,<i>T</i>) gravityFLRW metricdynamic system analysisPoincaré compactification
spellingShingle Jianwen Liu
Ruifang Wang
Fabao Gao
Dynamics of a Cosmological Model in <i>f</i>(<i>R</i>,<i>T</i>) Gravity: II. In Three-Dimensional Space
Universe
<i>f</i>(<i>R</i>,<i>T</i>) gravity
FLRW metric
dynamic system analysis
Poincaré compactification
title Dynamics of a Cosmological Model in <i>f</i>(<i>R</i>,<i>T</i>) Gravity: II. In Three-Dimensional Space
title_full Dynamics of a Cosmological Model in <i>f</i>(<i>R</i>,<i>T</i>) Gravity: II. In Three-Dimensional Space
title_fullStr Dynamics of a Cosmological Model in <i>f</i>(<i>R</i>,<i>T</i>) Gravity: II. In Three-Dimensional Space
title_full_unstemmed Dynamics of a Cosmological Model in <i>f</i>(<i>R</i>,<i>T</i>) Gravity: II. In Three-Dimensional Space
title_short Dynamics of a Cosmological Model in <i>f</i>(<i>R</i>,<i>T</i>) Gravity: II. In Three-Dimensional Space
title_sort dynamics of a cosmological model in i f i i r i i t i gravity ii in three dimensional space
topic <i>f</i>(<i>R</i>,<i>T</i>) gravity
FLRW metric
dynamic system analysis
Poincaré compactification
url https://www.mdpi.com/2218-1997/9/1/49
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