k-essence in Horndeski models

dc.contributor.author	Myrzakul, Shynaray
dc.contributor.author	Myrzakulov, Ratbay
dc.contributor.author	Sebastiani, Lorenzo
dc.date.accessioned	2025-01-22T05:00:51Z
dc.date.available	2025-01-22T05:00:51Z
dc.date.issued	2016
dc.identifier.issn	1572-946X
dc.identifier.other	DOI 10.1007/s10509-016-2846-5
dc.identifier.uri	http://rep.enu.kz/handle/enu/20981
dc.description.abstract	In this paper, we investigate a simple class of Horndeski models where the scalar field plays the role of a k-essence fluid. We present several solutions for earlytime universe, namely inflation and cosmological bounce, by making use of some reconstruction technique. Moreover, we furnish the formalism to calculate perturbations in FRW space-time and we compute the spectral index and the tensor-to-scalar ratio during inflation.	ru
dc.language.iso	en	ru
dc.publisher	Astrophysics and Space Science	ru
dc.relation.ispartofseries	361:254;
dc.subject	k-essence	ru
dc.subject	Inflation	ru
dc.subject	Cosmological bounce	ru
dc.title	k-essence in Horndeski models	ru
dc.type	Article	ru