Mostrando 1,061 - 1,080 Resultados de 5,650 Para Buscar '"cosmology"', tiempo de consulta: 0.13s Limitar resultados
  1. 1061
  2. 1062
  3. 1063
  4. 1064
    por Cheng Ta Pei
    Publicado 2005
    Materias: “…General Relativity and Cosmology…”
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  5. 1065
  6. 1066
  7. 1067
  8. 1068
    por Veneziano, G
    Publicado 1997
    Materias: “…General Relativity and Cosmology…”
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  9. 1069
    “…We apply our results to several classes of general teleparallel gravity theories and derive their cosmological dynamics for all five branches. Our results show that for large subclasses of these theories the dynamics reduce to that of closely related metric or symmetric teleparallel gravity theories, while for other subclasses up to two new scalar degrees of freedom participate in the cosmological dynamics.…”
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    Online Artículo Texto
  10. 1070
    “…We observe that Barrow exponent [Formula: see text] significantly affects the cosmological behavior of HDE, and in particular, the equation of state (EoS) parameter can cross the phantom line [Formula: see text]. …”
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    Online Artículo Texto
  11. 1071
  12. 1072
    “…A generalized teleparallel cosmological model, [Formula: see text] , containing the torsion scalar T and the teleparallel counterpart of the Gauss–Bonnet topological invariant [Formula: see text] , is studied in the framework of the Noether symmetry approach. …”
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    Online Artículo Texto
  13. 1073
    “…Adopting Noether point symmetries, we classify and integrate dynamical systems coming from Horndeski cosmologies. The method is particularly effective both to select the form of Horndeski models and to derive exact cosmological solutions. …”
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    Online Artículo Texto
  14. 1074
    “…Even in the case where the explicit cosmological constant is absent, the scenario at hand can very efficiently mimic [Formula: see text] cosmology, and is in excellent agreement with Supernovae type Ia observational data.…”
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    Online Artículo Texto
  15. 1075
  16. 1076
  17. 1077
    “…The Raychaudhuri equations are strong geometrical tools in the study of general relativity and cosmology. We suggest a refined entropy measure applicable in cosmology and defined by the average deviation of the geodesics in a congruence.…”
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    Online Artículo Texto
  18. 1078
    por Qiu, Yu-Cheng, Tye, S.-H. Henry
    Publicado 2021
    “…String theory has no parameter except the string scale M(S), so the Planck scale M(Pl), the supersymmetry-breaking scale [Image: see text] , the electroweak scale m(EW) as well as the vacuum energy density (cosmological constant) Λ are to be determined dynamically at any local minimum solution in the string theory landscape. …”
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    Online Artículo Texto
  19. 1079
  20. 1080
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