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The Structure and Interpretation of Cosmology: Part I - General Relativistic Cosmology
The purpose of this work is to review, clarify, and critically analyse modern mathematical cosmology. The emphasis is upon mathematical objects and structures, rather than numerical computations. This paper concentrates on general relativistic cosmology.
Arp+24 more
core +2 more sources
The Implementation, Interpretation, and Justification of Likelihoods in Cosmology [PDF]
I discuss the formal implementation, interpretation, and justification of likelihood attributions in cosmology. I show that likelihood arguments in cosmology suffer from significant conceptual and formal problems that undermine their applicability in ...
Albert+77 more
core +4 more sources
Dark energy cosmology: the equivalent description via different theoretical models and cosmography tests [PDF]
We review different dark energy cosmologies. In particular, we present the ΛCDM cosmology, Little Rip and Pseudo-Rip universes, the phantom and quintessence cosmologies with Type I, II, III and IV finite-time future singularities and non-singular dark ...
K. Bamba+3 more
semanticscholar +1 more source
Modified cosmology from extended entropy with varying exponent [PDF]
We present a modified cosmological scenario that arises from the application of non-extensive thermodynamics with varying exponent. We extract the modified Friedmann equations, which contain new terms quantified by the non-extensive exponent, possessing ...
S. Nojiri, S. Odintsov, E. Saridakis
semanticscholar +1 more source
The crisis and the 40+ anomalies in Cosmology have been resolved, not by new Physics but by a new physical paradigm of the universe.
openaire +3 more sources
Using a new effective action predicted from quantum gravity where the sign of the Euclidean Einstein action is reversed, we discuss Wentzel–Kramers–Brillouin (WKB) solutions in quantum cosmology and predict that this sign change might explain the origin of phantom scalars.
Arundhati Dasgupta, Adamantia Zampeli
openaire +3 more sources
Abstract Intergenerational connectedness broadly encompasses relations among humans, lands, and all living and spiritual beings, and functions as an important part of Indigenous well‐being. Many public health campaigns and interventions aim to promote connectedness to support holistic wellness and reduce health inequities. Currently, however, there are
Victoria M. O'Keefe+13 more
wiley +1 more source
Well Tempered Cosmology: Scales [PDF]
Well tempered cosmology provides a well defined path for obtaining cosmology with a low energy cosmic acceleration despite a high (Planck) energy cosmological constant $\Lambda$, through a scalar field dynamically canceling $\Lambda$. We explore relations between the mass scales entering the various Horndeski gravity terms, and focus on the cases of ...
arxiv
The Landscape, the Swampland and the Era of Precision Cosmology [PDF]
We review the advanced version of the KKLT construction and pure d=4 de Sitter supergravity, involving a nilpotent multiplet, with regard to various conjectures that de Sitter state cannot exist in string theory.
Yashar Akrami+3 more
semanticscholar +1 more source
Cosmological tests for a linear coasting cosmology [PDF]
A strictly linear evolution of the scale factor is a characteristic feature in several classes of alternative gravity theories. In this article we investigate the overall viability of an open linear coasting cosmological model. We report that this model is consistent with gravitational lensing statistics (within $1 $) and accomodates old high-redshift
Deepak Jain+3 more
openaire +3 more sources