Found: 18

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  • Accelerating universe in modified teleparallel gravity theory.

    Published in:
    Proceedings of the International Astronomical Union, 2019, v. 15, n. S356, p. 397, doi. 10.1017/S1743921320003567
    By:
    • Sahlu, Shambel;
    • Ntahompagaze, Joseph;
    • Abebe, Amare;
    • Mota, David F.
    Publication type:
    Article

  • On Chaplygin models in f(G) gravity.

    Published in:
    International Journal of Modern Physics D: Gravitation, Astrophysics & Cosmology, 2023, v. 32, n. 11, p. 1, doi. 10.1142/S021827182350061X
    By:
    • Twagirayezu, Fidele;
    • Ayirwanda, Abraham;
    • Munyeshyaka, Albert;
    • Mukeshimana, Solange;
    • Ntahompagaze, Joseph;
    • Uwimbabazi, Leon Fidele Ruganzu
    Publication type:
    Article

  • On 1+3 covariant perturbations of the quasi-Newtonian spacetime in modified Gauss–Bonnet gravity.

    Published in:
    International Journal of Modern Physics D: Gravitation, Astrophysics & Cosmology, 2023, v. 32, n. 9, p. 1, doi. 10.1142/S0218271823500530
    By:
    • Munyeshyaka, Albert;
    • Ntahompagaze, Joseph;
    • Mutabazi, Tom;
    • Mbonye, Manasse R.
    Publication type:
    Article

  • Large-scale structure power spectrum from scalar–tensor gravity.

    Published in:
    International Journal of Modern Physics D: Gravitation, Astrophysics & Cosmology, 2022, v. 31, n. 9, p. 1, doi. 10.1142/S0218271822500717
    By:
    • Ntahompagaze, Joseph;
    • Abebe, Amare;
    • Mbonye, Manasse R.
    Publication type:
    Article

  • Cosmological perturbations in f(G) gravity.

    Published in:
    International Journal of Modern Physics D: Gravitation, Astrophysics & Cosmology, 2021, v. 30, n. 7, p. N.PAG, doi. 10.1142/S021827182150053X
    By:
    • Munyeshyaka, Albert;
    • Ntahompagaze, Joseph;
    • Mutabazi, Tom
    Publication type:
    Article

  • On multifluid perturbations in scalar–tensor cosmology.

    Published in:
    International Journal of Modern Physics D: Gravitation, Astrophysics & Cosmology, 2020, v. 29, n. 16, p. N.PAG, doi. 10.1142/S0218271820501205
    By:
    • Ntahompagaze, Joseph;
    • Sahlu, Shambel;
    • Abebe, Amare;
    • Mbonye, Manasse R.
    Publication type:
    Article

  • A study of perturbations in scalar-tensor theory using covariant approach.

    Published in:
    International Journal of Modern Physics D: Gravitation, Astrophysics & Cosmology, 2018, v. 27, n. 3, p. -1, doi. 10.1142/S0218271818500335
    By:
    • Ntahompagaze, Joseph;
    • Abebe, Amare;
    • Mbonye, Manasse
    Publication type:
    Article

  • On covariant perturbations with scalar field in modified Gauss–Bonnet gravity.

    Published in:
    European Physical Journal C -- Particles & Fields, 2024, v. 84, n. 1, p. 1, doi. 10.1140/epjc/s10052-023-12381-2
    By:
    • Munyeshyaka, Albert;
    • Ntahompagaze, Joseph;
    • Mutabazi, Tom;
    • Mbonye, Manasse
    Publication type:
    Article

  • 1 + 3 covariant perturbations in power-law f(R) gravity.

    Published in:
    European Physical Journal C -- Particles & Fields, 2021, v. 81, n. 4, p. 1, doi. 10.1140/epjc/s10052-021-09134-4
    By:
    • Murorunkwere, Beatrice;
    • Ntahompagaze, Joseph;
    • Jurua, Edward
    Publication type:
    Article

  • Scalar perturbations in f(T) gravity using the 1+3 covariant approach.

    Published in:
    European Physical Journal C -- Particles & Fields, 2020, v. 80, n. 5, p. 1, doi. 10.1140/epjc/s10052-020-7961-3
    By:
    • Sahlu, Shambel;
    • Ntahompagaze, Joseph;
    • Abebe, Amare;
    • de la Cruz-Dombriz, Álvaro;
    • Mota, David F.
    Publication type:
    Article

  • The Chaplygin gas as a model for modified teleparallel gravity?

    Published in:
    European Physical Journal C -- Particles & Fields, 2019, v. 79, n. 9, p. N.PAG, doi. 10.1140/epjc/s10052-019-7226-1
    By:
    • Sahlu, Shambel;
    • Ntahompagaze, Joseph;
    • Elmardi, Maye;
    • Abebe, Amare
    Publication type:
    Article

  • Perturbations in the interacting vacuum.

    Published in:
    International Journal of Geometric Methods in Modern Physics, 2023, v. 20, n. 3, p. 1, doi. 10.1142/S0219887823500470
    By:
    • Munyeshyaka, Albert;
    • Ntahompagaze, Joseph;
    • Mutabazi, Tom;
    • Mbonye, Manasse R.;
    • Ayirwanda, Abraham;
    • Twagirayezu, Fidele;
    • Abebe, Amare
    Publication type:
    Article

  • Multifluid cosmology in f(G) gravity.

    Published in:
    International Journal of Geometric Methods in Modern Physics, 2023, v. 20, n. 2, p. 1, doi. 10.1142/S0219887823500317
    By:
    • Munyeshyaka, Albert;
    • Ayirwanda, Abraham;
    • Twagirayezu, Fidele;
    • Murorunkwere, Beatrice;
    • Ntahompagaze, Joseph
    Publication type:
    Article

  • On inflationary parameters in scalar–tensor theories.

    Published in:
    International Journal of Geometric Methods in Modern Physics, 2022, v. 19, n. 10, p. 1, doi. 10.1142/S0219887822501456
    By:
    • Murorunkwere, Beatrice;
    • Twagirayezu, Fidele;
    • Munyeshyaka, Albert;
    • Ntahompagaze, Joseph;
    • Ayirwanda, Abraham
    Publication type:
    Article

  • Inflationary constraints in teleparallel gravity theory.

    Published in:
    International Journal of Geometric Methods in Modern Physics, 2021, v. 18, n. 2, p. N.PAG, doi. 10.1142/S0219887821500274
    By:
    • Sahlu, Shambel;
    • Ntahompagaze, Joseph;
    • Abebe, Amare;
    • Mota, David F.
    Publication type:
    Article

  • Inflation constraints for classes of f(R) models.

    Published in:
    International Journal of Geometric Methods in Modern Physics, 2018, v. 15, n. 12, p. N.PAG, doi. 10.1142/S0219887818502092
    By:
    • Ntahompagaze, Joseph;
    • Damascène Mbarubucyeye, Jean;
    • Sahlu, Shambel;
    • Abebe, Amare
    Publication type:
    Article

  • Reconstructing gravity from a Chaplygin scalar field in de Sitter spacetimes.

    Published in:
    International Journal of Geometric Methods in Modern Physics, 2018, v. 15, n. 2, p. -1, doi. 10.1142/S0219887818500275
    By:
    • Sami, Heba;
    • Namane, Neo;
    • Ntahompagaze, Joseph;
    • Elmardi, Maye;
    • Abebe, Amare
    Publication type:
    Article

  • On gravity in scalar-tensor theories.

    Published in:
    International Journal of Geometric Methods in Modern Physics, 2017, v. 14, n. 7, p. -1, doi. 10.1142/S0219887817501079
    By:
    • Ntahompagaze, Joseph;
    • Abebe, Amare;
    • Mbonye, Manasse
    Publication type:
    Article