Extended Cosmologies

Abstract

We shall discuss cosmological models in extended theories of gravitation. We shall define a surface, called the model surface, in the space of observable parameters which characterises families of theories. We also show how this surface can be used to compare with observations. The model surface can potentially be used to falsify whole families of models instead reasoning on a single model basis as it is usually done by best fit arguments with observations.

References in corpus (10)

• Extended Theories of Gravity
• Extended Theories of Gravity and their Cosmological and Astrophysical Applications
• A no-go theorem for polytropic spheres in Palatini f(R) gravity
• General Relativity and Weyl Geometry
• Hydrogen atom in Palatini theories of gravity
• f(R) gravity: successes and challenges
• Cosmic acceleration from modified gravity with Palatini formalism
• Weyl geometry and gauge-invariant gravitation
• Breaking the Conformal Gauge by Fixing Time Protocols
• Extending the ADM formalism to Weyl geometry

Cited by in corpus (5)

• Inflationary cosmology with Chaplygin gas in Palatini formalism
• Emergence of dynamical dark energy from polynomial $f(R)$ theory in Palatini formalism
• Extended Cosmology in Palatini f(R)-theories
• Polynomial $f(R)$ Palatini cosmology -- dynamical system approach
• The effective Equation of State in Palatini $f(R)$ cosmology