Cosmology of Metric-Affine R+βR2 Gravity with Pure Shear Hypermomentum

dc.contributor.author	Iosifidis, Damianos
dc.contributor.author	Iosifidis, Damianos
dc.contributor.author	Myrzakulov, Ratbay
dc.contributor.author	Ravera, Lucrezia
dc.date.accessioned	2025-01-20T12:35:19Z
dc.date.available	2025-01-20T12:35:19Z
dc.date.issued	2024
dc.identifier.issn	1521-3978
dc.identifier.other	DOI: 10.1002/prop.202300003
dc.identifier.uri	http://rep.enu.kz/handle/enu/20917
dc.description.abstract	In this paper we study the cosmological aspects of metric-affine f(R) gravity with hyperfluid. The equations of motion of the theory are obtained by varying the action with respect to the metric and the independent connection. Subsequently, considering a Friedmann-Lemaître-Robertson-Walker background, we derive the modified Friedmann equations in the presence of a perfect cosmological hyperfluid. Especially, we focus on the particular case in which f(R)=R+βR2, considering purely shear hypermomentum and finding exact solutions in the weak coupling limit.	ru
dc.language.iso	en	ru
dc.publisher	Fortschritte der Physik	ru
dc.relation.ispartofseries	72, 2300003;
dc.title	Cosmology of Metric-Affine R+βR2 Gravity with Pure Shear Hypermomentum	ru
dc.type	Article	ru