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Journal articles on the topic 'Cosmological models'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Harvey, Alex. "Cosmological models." American Journal of Physics 61, no. 10 (1993): 901–6. http://dx.doi.org/10.1119/1.17361.

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2

Schramm, David N. "Cosmological models." Nuclear Physics B - Proceedings Supplements 70, no. 1-3 (1999): 3–13. http://dx.doi.org/10.1016/s0920-5632(98)00383-1.

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3

Hajj-Boutros, J. "Cosmological models." International Journal of Theoretical Physics 28, no. 4 (1989): 487–93. http://dx.doi.org/10.1007/bf00673299.

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4

Bisnovatyi-Kogan, G. S. "Cosmological Models." Astronomy Reports 68, S1 (2024): S69—S73. https://doi.org/10.1134/s1063772924701063.

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5

DAVIES, P. C. W. "MULTIVERSE COSMOLOGICAL MODELS." Modern Physics Letters A 19, no. 10 (2004): 727–43. http://dx.doi.org/10.1142/s021773230401357x.

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Recent advances in string theory and inflationary cosmology have led to a surge of interest in the possible existence of an ensemble of cosmic regions, or "universes", among the members of which key physical parameters, such as the masses of elementary particles and the coupling constants, might assume different values. The observed values in our cosmic region are then attributed to an observer selection effect (the so-called anthropic principle). The assemblage of universes has been dubbed "the multiverse". In this paper we review the multiverse concept and the criticisms that have been advan

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6

Coule, D. H. "Quantum cosmological models." Classical and Quantum Gravity 22, no. 12 (2005): R125—R166. http://dx.doi.org/10.1088/0264-9381/22/12/r02.

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7

Senovilla, José M. M., and Raül Vera. "Dust cosmological models." Classical and Quantum Gravity 14, no. 12 (1997): 3481–87. http://dx.doi.org/10.1088/0264-9381/14/12/028.

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8

Hajj-Boutros, J. "New cosmological models." Classical and Quantum Gravity 3, no. 3 (1986): 311–16. http://dx.doi.org/10.1088/0264-9381/3/3/006.

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9

Berman, Marcelo Samuel. "Cosmological models with a variable cosmological term." Physical Review D 43, no. 4 (1991): 1075–78. http://dx.doi.org/10.1103/physrevd.43.1075.

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10

Beesham, Aroonkumar. "Cosmological models with a variable cosmological term and bulk viscous models." Physical Review D 48, no. 8 (1993): 3539–43. http://dx.doi.org/10.1103/physrevd.48.3539.

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11

Moles, M. "Physically permitted cosmological models with nonzero cosmological constant." Astrophysical Journal 382 (December 1991): 369. http://dx.doi.org/10.1086/170727.

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12

Yong-Jiu, Wang, and Tang Zhi-Ming. "Cosmological Constant and Stability of the Cosmological Models." Communications in Theoretical Physics 37, no. 6 (2002): 667–70. http://dx.doi.org/10.1088/0253-6102/37/6/667.

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13

Singh, N. Ibotombi, S. Surendra Singh, S. Romaleima Devi, and A. Sumati Devi. "Cosmological models with generalised gravitational and cosmological constants." Astrophysics and Space Science 324, no. 1 (2009): 67–70. http://dx.doi.org/10.1007/s10509-009-0135-2.

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14

Berman, Marcelo Samuel. "Cosmological models with variable gravitational and cosmological ?constants?" General Relativity and Gravitation 23, no. 4 (1991): 465–69. http://dx.doi.org/10.1007/bf00756609.

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15

ABDUSSATTAR. "COSMOLOGICAL MODELS GENERALIZING ROBERTSON–WALKER MODELS." International Journal of Modern Physics D 12, no. 09 (2003): 1603–13. http://dx.doi.org/10.1142/s021827180300433x.

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Considering the physical 3-space t= constant of the space–time metrics as spheroidal and pseudo-spheroidal, cosmological models which are generalizations of Robertson–Walker models are obtained. Specific forms of these general models as solutions of Einstein's field equations are also discussed in the radiation and the matter dominated era of the universe.

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16

Kumar, Utkarsh, and Sukanta Panda. "Non-local cosmological models." Classical and Quantum Gravity 36, no. 24 (2019): 245012. http://dx.doi.org/10.1088/1361-6382/ab4eb6.

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17

Kantowski, Ronald. "Some Relativistic Cosmological Models." General Relativity and Gravitation 30, no. 11 (1998): 1665–700. http://dx.doi.org/10.1023/a:1026676524523.

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18

Kufshinova, E. V., and V. F. Panov. "Cosmological Models with Rotation." Russian Physics Journal 47, no. 2 (2004): 128–31. http://dx.doi.org/10.1023/b:rupj.0000034476.91446.7d.

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19

Raychaudhuri, A. K. "Cosmological models and entropy." Classical and Quantum Gravity 7, no. 2 (1990): 265–67. http://dx.doi.org/10.1088/0264-9381/7/2/020.

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20

Sánchez, Alberto, Alfredo Macı́as, and Hernando Quevedo. "Generating Gowdy cosmological models." Journal of Mathematical Physics 45, no. 5 (2004): 1849–58. http://dx.doi.org/10.1063/1.1695448.

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21

Calzetta, Esteban, Antonio Campos, and Enric Verdaguer. "Stochastic semiclassical cosmological models." Physical Review D 56, no. 4 (1997): 2163–72. http://dx.doi.org/10.1103/physrevd.56.2163.

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22

Koshelev, Alexey S. "SFT based cosmological models." Journal of Physics: Conference Series 259 (November 1, 2010): 012044. http://dx.doi.org/10.1088/1742-6596/259/1/012044.

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23

Serna, A., and J. M. Alimi. "Scalar-tensor cosmological models." Physical Review D 53, no. 6 (1996): 3074–86. http://dx.doi.org/10.1103/physrevd.53.3074.

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24

Wanas, M. I., and MA Bakry. "Stability of Cosmological Models." Symposium - International Astronomical Union 168 (1996): 573–74. http://dx.doi.org/10.1017/s0074180900110733.

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The stability problem in cosmology is studied using the equations of geodesic deviation. General conditions for stability are obtained. The method is applied to a number of cosmological models, resulting from different field theories. The results are compared with those obtained from FRW -models.

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25

Wanas, M. I., and M. A. Bakry. "Stability of cosmological models." Astrophysics and Space Science 228, no. 1-2 (1995): 239–53. http://dx.doi.org/10.1007/bf00984978.

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26

Pavelkin, V. N., V. F. Panov, and O. V. Sandakova. "Cosmological models with rotation." Russian Physics Journal 51, no. 8 (2008): 808–14. http://dx.doi.org/10.1007/s11182-009-9117-7.

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27

Coley, A. A., and B. O. J. Tupper. "Two‐fluid cosmological models." Journal of Mathematical Physics 27, no. 1 (1986): 406–16. http://dx.doi.org/10.1063/1.527347.

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28

Tavakol, R. K., and G. F. R. Ellis. "Stability of cosmological models." Physics Letters A 143, no. 1-2 (1990): 8–12. http://dx.doi.org/10.1016/0375-9601(90)90788-p.

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29

Arbab, Arbab I. "Cosmological Models with Variable Cosmological and Gravitational “Constants” and Bulk Viscous Models." General Relativity and Gravitation 29, no. 1 (1997): 61–74. http://dx.doi.org/10.1023/a:1010252130608.

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30

SAULUKOVA, E. "PHILOSOPHICAL FOUNDATIONS OF MODERN COSMOLOGICAL MODELS." Herald of Polotsk State University. Series E. Pedagogical sciences, no. 2 (November 29, 2024): 108–11. https://doi.org/10.52928/2070-1640-2024-42-2-108-111.

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The importance of cosmological concepts in the evolutionary-synergetic picture of the world is indicated. The philosophical foundations of modern cosmological models are revealed. Modern cosmological theories of the origin and evolution of the Universe are presented. The relevance of cosmological knowledge in the structure of the modern scientific picture of the world is demonstrated.

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31

Ojha, Pratima, and R. K. Dubey R.K.Dubey. "Mathematical Properties of Homogeneous and Isotropic Cosmological Models." International Journal of Scientific Research 2, no. 2 (2012): 83–84. http://dx.doi.org/10.15373/22778179/feb2013/30.

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32

Ibotombi Singh, N., and Anita Sorokhaibam. "Cosmological models with the variable gravitational and cosmological constants." Astrophysics and Space Science 310, no. 1-2 (2007): 131–34. http://dx.doi.org/10.1007/s10509-007-9487-7.

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33

Singh, C. P. "Cosmological models with time-varying gravitational and cosmological “constants”." Astrophysics and Space Science 331, no. 1 (2010): 337–42. http://dx.doi.org/10.1007/s10509-010-0439-2.

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34

Tiwari, R. K., and Rameshwar Singh. "Bianchi Type V Cosmological Models with Varying Cosmological Term." International Journal of Theoretical Physics 54, no. 5 (2014): 1417–34. http://dx.doi.org/10.1007/s10773-014-2340-1.

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35

Tiwari, Ram Bharosha Ahmad, and Sudhir Kumar Srivastava. "CERTAIN COSMOLOGICAL MODELS WITH VARIATION OF HUBBLE PARAMETER." South East Asian J. of Mathematics and Mathematical Sciences 19, no. 01 (2023): 323–34. http://dx.doi.org/10.56827/seajmms.2023.1901.26.

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The present paper deals with the FRW-Cosmological Model of universe for W2 flat perfect fluid space time. Einstein field equations with variable cosmological constant (Λ) has been obtained for such spacetime and in order to get the complete cosmological solution the law of variation for Hubble’s parameter is considered. A new class of solution have been discussed for the Einstein field equations with variable cosmological constant in which the pressure, energy density, and cosmological constant Λ are found to be decreasing function of cosmic time. The physical and kinematical properties of mod

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36

Kardashev, N. S., Vladimir N. Lukash, and Igor D. Novikov. "Observational cosmology and cosmological models." Uspekhi Fizicheskih Nauk 151, no. 1 (1987): 178. http://dx.doi.org/10.3367/ufnr.0151.198701k.0178.

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37

Vorontsova, Elena Gennadievna, and German Sergeyevich Sharov. "Cosmological models with scalar fields." Herald of Tver State University. Series: Applied Mathematics, no. 1 (April 30, 2020): 97–111. http://dx.doi.org/10.26456/vtpmk558.

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38

Fernández-Jambrina, Leonardo. "Singularities in Inflationary Cosmological Models." Universe 7, no. 12 (2021): 491. http://dx.doi.org/10.3390/universe7120491.

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Due to the accelerated expansion of the universe, the possibilities for the formation of singularities has changed from the classical Big Bang and Big Crunch singularities to include a number of new scenarios. In recent papers it has been shown that such singularities may appear in inflationary cosmological models with a fractional power scalar field potential. In this paper we enlarge the analysis of singularities in scalar field cosmological models by the use of generalised power expansions of their Hubble scalars and their scalar fields in order to describe all possible models leading to a

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39

FERNÁNDEZ-JAMBRINA, L., and L. M. GONZÁLEZ-ROMERO. "NON-SINGULAR RADIATION COSMOLOGICAL MODELS." Modern Physics Letters A 19, no. 08 (2004): 583–95. http://dx.doi.org/10.1142/s0217732304013404.

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In this paper we analyse the possibility of constructing singularity-free inhomogeneous cosmological models with a pure radiation field as matter content. It is shown that the conditions for regularity are very easy to implement and therefore there is a huge number of such spacetimes.

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40

Isidro, Eddy G. Chirinos, Cristofher Zuñiga Vargas, and Winfried Zimdahl. "Simple inhomogeneous cosmological (toy) models." Journal of Cosmology and Astroparticle Physics 2016, no. 05 (2016): 003. http://dx.doi.org/10.1088/1475-7516/2016/05/003.

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41

Alvarenga, F. G., J. C. Fabris, N. A. Lemos, and G. A. Monerat. "Quantum Cosmological Perfect Fluid Models." General Relativity and Gravitation 34, no. 5 (2002): 651–63. http://dx.doi.org/10.1023/a:1015986011295.

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42

Tadaki, S. i., M. Den, K. Ohnishi, and Y. Yamada. "Classification of Conformal Cosmological Models." Progress of Theoretical Physics 83, no. 3 (1990): 491–98. http://dx.doi.org/10.1143/ptp.83.491.

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43

Alhulaimi, B., A. Coley, and P. Sandin. "Anisotropic Einstein-aether cosmological models." Journal of Mathematical Physics 54, no. 4 (2013): 042503. http://dx.doi.org/10.1063/1.4802246.

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44

Tomita, Kenji, Hideki Asada, and Takashi Hamana. "Distances in Inhomogeneous Cosmological Models." Progress of Theoretical Physics Supplement 133 (1999): 155–81. http://dx.doi.org/10.1143/ptps.133.155.

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45

Fernández-Jambrina, Leonardo. "ω-singularities in cosmological models". Journal of Physics: Conference Series 314 (22 вересня 2011): 012061. http://dx.doi.org/10.1088/1742-6596/314/1/012061.

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46

NETO, NELSON PINTO. "PERTURBATIONS IN BOUNCING COSMOLOGICAL MODELS." International Journal of Modern Physics D 13, no. 07 (2004): 1419–24. http://dx.doi.org/10.1142/s0218271804005626.

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I describe the features and general properties of bouncing models and the evolution of cosmological perturbations on such backgrounds. I will outline possible observational consequences of the existence of a bounce in the primordial Universe and I will make a comparison of these models with standard long inflationary scenarios.

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47

Kufshinova, E. V. "Nonstationary Cosmological Models with Rotation." Russian Physics Journal 47, no. 5 (2004): 471–76. http://dx.doi.org/10.1023/b:rupj.0000046319.47552.7c.

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48

Uggla, C. "Inhomogeneous self-similar cosmological models." Classical and Quantum Gravity 9, no. 10 (1992): 2287–95. http://dx.doi.org/10.1088/0264-9381/9/10/012.

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49

Horwitz, G., and D. Weil. "Thermodynamic stability of cosmological models." Physical Review D 33, no. 2 (1986): 567–69. http://dx.doi.org/10.1103/physrevd.33.567.

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50

Goode, S. W., and J. Wainwright. "Isotropic singularities in cosmological models." Classical and Quantum Gravity 2, no. 1 (1985): 99–115. http://dx.doi.org/10.1088/0264-9381/2/1/010.

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