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Testing the Cosmological Principle in an Axisymmetric Metric from Ia SNe and CMB

We investigate the possibility of testing the Cosmological Principle within a specific axisymmetric metric. Starting from the Einstein field equations, we derive a perturbed form of the Friedmann equation based on this metric and obtain a generalized form for matter density perturbations. By combini...

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Principais autores: Shuangnan Chen, Xiaofeng Yang, Yunliang Ren, Sufen Guo
Format: Artigo
Sprog:Inglês
Udgivet: MDPI AG 2026-05-01
Serier:Universe
Fag:
cosmology principle
axisymmetric metric
matter perturbation
Ia Supernovae
CMB
cosmic expansion
Online adgang:https://www.mdpi.com/2218-1997/12/6/156
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