Generalized modified gravity models: the stability issue
Guido Cognola, Sergio Zerbini
TL;DR
This paper investigates the stability of spatially flat cosmologies in generalized modified gravity models using dynamical system methods, focusing on the impact of matter-radiation fluids.
Contribution
It applies dynamical system techniques to analyze stability in a broad class of modified gravity models with matter-radiation fluids, highlighting stability conditions.
Findings
Identifies stability criteria for flat cosmologies in modified gravity.
Demonstrates the role of matter-radiation fluids in stability analysis.
Provides a framework for future stability investigations in generalized gravity models.
Abstract
A brief introduction on the issue of stability in generalized modified gravity is presented and the dynamical system methods are used in the investigation of the stability of spatially flat homogeneous cosmologies within a large class of generalized modified gravity models in the presence of a relativistic matter-radiation fluid.
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Taxonomy
TopicsCosmology and Gravitation Theories · Black Holes and Theoretical Physics · Advanced Differential Geometry Research