One of the most important problems in science today is the origin of \dark matter". Much of our understanding of the history and present state of the universe depends upon conjectures about the nature of dark matter. In some sense, our knowledge rests upon a \house of cards" which won't be buttressed until progress is made in identifying what dark matter represents. Most research today is found...

We study a perturbation theory for embedding gravity equations in background which corrections to the function are linear with respect flat metric. The remaining arbitrariness after solving linearized field is fixed by an assumption that solution static second order. A nonlinear differential equation obtained, allows finding gravitational potential spherically symmetric case if given. An explic...

We explore the conditional probabilistic independences of systems of random variables (I; JjK), to read \I is conditionally independent of J given K", which are ascending (I; JjK)) (I; JjK L) or descending (I; JjK L)) (I; JjK). The resulting abstract independence structures can be equivalently described by weak families of connected sets. Using, in addition, probabilistic representations of mat...

In this paper we examine the absorption and dispersion properties of a weak probe field via Electromagnetically Induced Transparency (EIT) in a four-level system. It is shown that under certain condition, using this model, the absorption cancellation is appeared and the medium becomes transparent to the weak probe field. It will be shown that the controlling of absorption and dispersion spectru...

in this paper we examine the absorption and dispersion properties of a weak probe field via electromagnetically induced transparency (eit) in a four-level system. it is shown that under certain condition, using this model, the absorption cancellation is appeared and the medium becomes transparent to the weak probe field. it will be shown that the controlling of absorption and dispersion spectru...