Search Results - "Nugmanova, Gulgasyl"

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  1. 1

    Periodic Cosmological Evolutions of Equation of State for Dark Energy by Ratbay Myrzakulov, Gulgasyl Nugmanova, Petr Tsyba, Kuralay Yesmakhanova, Kazuharu Bamba, Ujjal Debnath

    Published in Entropy (Basel, Switzerland) (01-11-2012)
    “…We demonstrate two periodic or quasi-periodic generalizations of the Chaplygin gas (CG) type models to explain the origins of dark energy as well as dark…”
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    Journal Article
  2. 2
  3. 3

    A Note on the Relationship Between Solutions of Einstein, Ramanujan and Chazy Equations by Esmakhanova, Kuralay, Myrzakulov, Yerlan, Nugmanova, Gulgasyl, Myrzakulov, Ratbay

    “…The Einstein equation for the Friedmann-Robertson-Walker metric plays a fundamental role in cosmology. The direct search of the exact solutions of the Einstein…”
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  4. 4

    g-Essence as the cosmic speed-up by Yerzhanov, Koblandy, Yesmakhanova, Kuralay, Tsyba, Petr, Myrzakulov, Nurgissa, Nugmanova, Gulgasyl, Myrzakulov, Ratbay

    Published in Astrophysics and space science (01-10-2012)
    “…In the present work we analyze the g-essence model for the particular Lagrangian: . The g-essence models were proposed recently as an alternative and a…”
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  5. 5

    G-essence cosmologies with scalar-fermion interactions by Razina, Olga, Myrzakulov, Yerlan, Serikbayev, Nurzhan, Myrzakul, Shynaray, Nugmanova, Gulgasyl, Myrzakulov, Ratbay

    Published in European physical journal plus (01-09-2011)
    “…We study the two particular models of g -essence with Yukawa-type interactions between a scalar field φ and a classical Dirac field ψ . For the homogeneous,…”
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  6. 6

    A note on the relationship between solutions of Einstein, Ramanujan and Chazy equations by Esmakhanova, Kuralay, Myrzakulov, Yerlan, Nugmanova, Gulgasyl, Myrzakulov, Ratbay

    Published 30-07-2012
    “…International Journal of Theoretical Physics, v.51, N4, 1204-1210 (2012) The Einstein equation for the Friedmann-Robertson-Walker metric plays a fundamental…”
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  7. 7

    Einstein-Cartan gravity with scalar-fermion interactions by Razina, Olga, Myrzakulov, Yerlan, Serikbayev, Nurzhan, Nugmanova, Gulgasyl, Myrzakulov, Ratbay

    Published 10-12-2011
    “…Cent. Eur. J. Phys., vol. 10, N1, 47-50 (2012) In this paper, we have considered the g-essence and its particular cases, k-essence and f-essence, within the…”
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  8. 8

    FRW cosmological models with integrable and nonintegrable differential equations of state by Myrzakul, Shynaray, Esmakhanova, Kuralay, Myrzakulov, Kairat, Nugmanova, Gulgasyl, Myrzakulov, Ratbay

    Published 12-05-2011
    “…The basic models of modern cosmology work in FRW spacetime. Hence follows that it is important to study the physical and mathematical nature of FRW…”
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  9. 9

    Periodic Cosmological Evolutions of Equation of State for Dark Energy by Bamba, Kazuharu, Debnath, Ujjal, Yesmakhanova, Kuralay, Tsyba, Petr, Nugmanova, Gulgasyl, Myrzakulov, Ratbay

    Published 25-10-2012
    “…Entropy 2012, 14, 2351-2374 We demonstrate two periodic or quasi-periodic generalizations of the Chaplygin gas (CG) type models to explain the origins of dark…”
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  10. 10

    Dark energy in some integrable and nonintegrable FRW cosmological models by Esmakhanova, Kuralay, Myrzakulov, Nurgissa, Nugmanova, Gulgasyl, Myrzakulov, Yerlan, Chechin, Leonid, Myrzakulov, Ratbay

    Published 14-09-2011
    “…International Journal of Modern Physics D, Vol.20, No12, 2419-2446 (2011) One of the greatest challenges in cosmology today is to determine the nature of dark…”
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