We consider Brans-Dicke (BD) scalar tensor theory in the conformally

transformed Einstein frame. In this frame BD theory behaves like an

interacting quintessence model. We find the necessary conditions ...

We investigate a string-inspired scenario associated with a rolling massive scalar field on D-branes and discuss its cosmological implications. In particular, we discuss cosmological evolution of the massive scalar field on the ant-D3 brane of KKLT...

possesses a true sequence of cosmological eras. We also argue that, although in the context of the standard cosmological model the cosmological constant Λ does not play any important role in the early times and becomes important only after the matter...

monuments of the complex, the circular-concentric layout of the city has been the subject of several speculative interpretations. The premise of this article is to question the cosmological significance of Ardašīr-Xwarrah’s layout. Then, in order...

We discuss scalar–tensor cosmology with an extra R^-1 correction by the Noether symmetry approach.

The existence of such a symmetry selects the forms of the coupling ω(ϕ), of the potential V (ϕ) and

allows to obtain physically...

یکی از موضوعاتی که ریاضیات و فلسفه را به یکدیگر پیوند داده است، مسئله «بعد نامتناهی» است. ویلیام کریگ، فیلسوف و متکلم آمریکایی سعی کرده است، با توسل به ریاضیات، عدم تحقق حوادث نامتناهی در عالم و حدوث زمانی جهان را اثبات ...