Zobrazeno 1 - 5
of 5
pro vyhledávání: '"G. H. Harutunyan"'
Publikováno v:
Armenian Journal of Physics. :1-6
The cosmological model is considered in the presence of a conformally coupled field in the evolution of the early Universe. Such a field, satisfying the condition of general covariance, leads to the appearance of an additional term in the functional
Publikováno v:
Astrophysics. 64:355-369
Cosmological evolution is examined in a model with a conformally-coupled scalar field and with a cosmological constant. Models of this type arise in two types of gravitational theory: in the general theory of relativity and in scalar-tensor theories
Publikováno v:
Physics of Atomic Nuclei. 81:894-898
Solutions of the cosmological model are considered within the framework of the modified Jordan–Brans–Dicke theory with a cosmological scalar. A special solution of the model describing an exponential expansion at the early stages and a power-law
Publikováno v:
Astrophysics. 54:568-580
This paper is part of a series based on a modified Jordan tensor-scalar theory of gravitation. Given the current importance of research on vacuum phenomena in cosmic evolution, we examine several standard cosmological models with a scalar field and a
Publikováno v:
Astrophysics. 53:284-301
Recent cosmological observations of large-scale structures (red shift of type Ia supernovae) confirm that the universe is currently expanding at an accelerating rate and its dominant component is dark energy. This has stimulated the development of th