Search Results - "Razina, Olga"

  • Showing 1 - 18 results of 18
Refine Results
  1. 1

    Investigation of Partition Function Transformation for the Potts Model into a Dichromatic Knot Polynomial 74 by Kassenova, Tolkyn, Tsyba, Pyotr, Razina, Olga

    Published in Symmetry (Basel) (01-07-2024)
    “…This article examines quantum group symmetry using the Potts model. The transformation of the Potts model into a polynomial knot state on Kaufman square…”
    Get full text
    Journal Article
  2. 2

    Probing Our Universe’s Past Using Earth’s Geological and Climatological History and Shadows of Galactic Black Holes by Oikonomou, V. K., Tsyba, Pyotr, Razina, Olga

    Published in Universe (Basel) (01-09-2022)
    “…In this short review, we discuss how Earth’s climatological and geological history and also how the shadows of galactic black holes might reveal our Universe’s…”
    Get full text
    Journal Article
  3. 3

    Kinetic Axion f(R) Gravity Phase Space by Oikonomou, Vasilis K., Fronimos, Fotis P., Razina, Olga, Tsyba, Pyotr

    Published in Symmetry (Basel) (01-10-2023)
    “…In this work, we studied the phase space of f(R) gravity in the presence of a misalignment axion, including parity violating Chern–Simons terms. We construct…”
    Get full text
    Journal Article
  4. 4
  5. 5

    Red or blue tensor spectrum from GW170817-compatible Einstein-Gauss-Bonnet theory: A detailed analysis by Oikonomou, V. K., Tsyba, Pyotr, Razina, Olga

    Published in Europhysics letters (01-02-2024)
    “…In this work we shall prove that the tensor spectral index of the primordial tensor perturbations for GW170817-compatible Einstein-Gauss-Bonnet theories, takes…”
    Get full text
    Journal Article
  6. 6

    Einstein–Gauss–Bonnet cosmological theories at reheating and at the end of the inflationary era by Oikonomou, V.K., Tsyba, Pyotr, Razina, Olga

    Published in Annals of physics (01-03-2024)
    “…In this work we study the GW170817-compatible Einstein-Gauss–Bonnet theories during the reheating and the end of inflationary era. Given the scalar field…”
    Get full text
    Journal Article
  7. 7

    Investigation of Partition Function Transformation for the Potts Model into a Dichromatic Knot Polynomial 7[sub.4] by Kassenova, Tolkyn, Tsyba, Pyotr, Razina, Olga

    Published in Symmetry (Basel) (01-07-2024)
    “…This article examines quantum group symmetry using the Potts model. The transformation of the Potts model into a polynomial knot state on Kaufman square…”
    Get full text
    Journal Article
  8. 8

    Kinetic Axion If/I Gravity Phase Space by Oikonomou, Vasilis K, Fronimos, Fotis P, Razina, Olga, Tsyba, Pyotr

    Published in Symmetry (Basel) (01-10-2023)
    “…In this work, we studied the phase space of f(R) gravity in the presence of a misalignment axion, including parity violating Chern–Simons terms. We construct…”
    Get full text
    Journal Article
  9. 9

    Kinetic axion dark matter in string corrected f(R) gravity by Oikonomou, V.K., Fronimos, F.P., Tsyba, Pyotr, Razina, Olga

    Published in PHYSICS OF THE DARK UNIVERSE (01-05-2023)
    “…Under the main assumption that the axion scalar field mainly composes the dark matter in the Universe, in this paper we shall extend the formalism of kinetic…”
    Get full text
    Journal Article
  10. 10

    Modified Chaplygin gas and solvable F-essence cosmologies by Jamil, Mubasher, Myrzakulov, Yerlan, Razina, Olga, Myrzakulov, Ratbay

    Published in Astrophysics and space science (01-12-2011)
    “…The Modified Chaplygin Gas (MCG) model belongs to the class of a unified models of dark energy and dark matter. In this paper, we have modeled MCG in the…”
    Get full text
    Journal Article
  11. 11

    Red or Blue Tensor Spectrum from GW170817-compatible Einstein-Gauss-Bonnet Theory: A Detailed Analysis by Oikonomou, V. K, Tsyba, Pyotr, Razina, Olga

    Published 03-02-2024
    “…In this work we shall prove that the tensor spectral index of the primordial tensor perturbations for GW170817-compatible Einstein-Gauss-Bonnet theories, takes…”
    Get full text
    Journal Article
  12. 12

    Einstein-Gauss-Bonnet Cosmological Theories at Reheating and at the End of the Inflationary Era by Oikonomou, V. K, Tsyba, Pyotr, Razina, Olga

    Published 20-01-2024
    “…In this work we study the GW170817-compatible Einstein-Gauss-Bonnet theories during the reheating and the end of inflationary era. Given the scalar field…”
    Get full text
    Journal Article
  13. 13

    Probing our Universe's Past Using Earth's Geological and Climatological History and Shadows of Galactic Black Holes by Oikonomou, V. K, Tsyba, Pyotr, Razina, Olga

    Published 10-09-2022
    “…In this short review, we discuss how Earth's climatological and geological history and also how the shadows of galactic black holes might reveal our Universe's…”
    Get full text
    Journal Article
  14. 14

    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,…”
    Get full text
    Journal Article
  15. 15

    Kinetic Axion Dark Matter in String Corrected $f(R)$ Gravity by Oikonomou, V. K, Fronimos, F. P, Tsyba, Pyotr, Razina, Olga

    Published 14-02-2023
    “…Phys.Dark Univ. 40 (2023) 101186 Under the main assumption that the axion scalar field mainly composes the dark matter in the Universe, in this paper we shall…”
    Get full text
    Journal Article
  16. 16

    Cosmological evolution of equation of state for dark energy in G-essence models by Bamba, Kazuharu, Razina, Olga, Yerzhanov, Koblandy, Myrzakulov, Ratbay

    Published 31-01-2013
    “…International Journal of Modern Physics D 22 (2013) 1350023 We explore the cosmological evolution of equation of state (EoS) for dark energy in g-essence…”
    Get full text
    Journal Article
  17. 17

    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…”
    Get full text
    Journal Article
  18. 18

    Modified Chaplygin Gas and Solvable F-essence Cosmologies by Jamil, Mubasher, Myrzakulov, Yerlan, Razina, Olga, Myrzakulov, Ratbay

    Published 18-10-2011
    “…Astrophys Space Sci (2011) 336:315-325 The Modified Chaplygin Gas (MCG) model belongs to the class of a unified models of dark energy and dark matter. In this…”
    Get full text
    Journal Article