000			02855nlm1a2200397 4500
001			639876
005			20231030040333.0
035			_a(RuTPU)RU\TPU\network\4389
035			_aRU\TPU\network\1769
090			_a639876
100			_a20150330a2014 k y0engy50 ba
101	0		_aeng
102			_aGB
135			_adrgn ---uucaa
181		0	_ai
182		0	_ab
200	1		_aBounce cosmology from F(R) gravity and F(R) bigravity _fK. Bamba [et al.]
203			_aText _celectronic
300			_aTitle screen
320			_a[References: p. 26-32 (132 tit.)]
330			_aWe reconstruct F(R) gravity models with exponential and power-law forms of the scale factor in which bounce cosmology can be realized. We explore the stability of the reconstructed models with analyzing the perturbations from the background solutions. Furthermore, we study an F(R) gravity model with a sum of exponentials form of the scale factor, where the bounce in the early universe as well as the late-time cosmic acceleration can be realized in a unified manner. As a result, we build a second order polynomial type model in terms of R and show that it could be stable. Moreover, when the scale factor is expressed by an exponential form, we derive F(R) gravity models of a polynomial type in case of the non-zero spatial curvature and that of a generic type in that of the zero spatial curvature. In addition, for an exponential form of the scale factor, an F(R) bigravity model realizing the bouncing behavior is reconstructed. It is found that in both the physical and reference metrics the bouncing phenomenon can occur, although in general the contraction and expansion rates are different each other.
333			_aРежим доступа: по договору с организацией-держателем ресурса
461			_tJournal of Cosmology and Astroparticle Physics
463			_tVol. 214 _v[34 p.] _d2014
610	1		_aэлектронный ресурс
610	1		_aтруды учёных ТПУ
701		1	_aBamba _bK.
701		1	_aMakarenko _bA. N.
701		1	_aMyagky _bA. N. _cphysicist _cAssociate Professor of Tomsk Polytechnic University, Candidate of physical and mathematical sciences _f1976- _gAlexander Nikolayevich _2stltpush _3(RuTPU)RU\TPU\pers\34078
701		1	_aNojiri _bSh.
701		1	_aOdintsov _bS. D.
712	0	2	_aНациональный исследовательский Томский политехнический университет (ТПУ) _bФизико-технический институт (ФТИ) _bКафедра высшей математики и математической физики (ВММФ) _h139 _2stltpush _3(RuTPU)RU\TPU\col\18727
801		1	_aRU _b63413507 _c20140916
801		2	_aRU _b63413507 _c20200513 _gRCR
856	4		_uhttp://dx.doi.org/10.1088/1475-7516/2014/01/008
942			_cCF