Interpenetrating subspaces as a funnel to extra space

New solution for two interpenetrating universes is found. Higher derivative gravity acting in 6-dimensional space is the basis of the study that allows to obtain stable solution without introducing matter of any sort. Stability of the solution is maintained by a difference between asymptotic behavior at spacial infinities. For an external observer such a funnel looks similar to a spherical wormhole.Comment: 10 pages, 5 figures, accepted for publication in Phys. Lett. B, revised versio

Role of initial conditions in the Universe formation

A dependence of low energy physics on initial conditions in the framework of multidimensional gravity is discussed. It is shown that the observable symmetries could be a result of specific topologies originated from space-time foam.Comment: 20 page

Cosmological dynamics of scalar field with non-minimal kinetic term

We investigate dynamics of scalar field with non-minimal kinetic term. Nontrivial behavior of the field in the vicinity of singular points of kinetic term is observed. In particular, the singular points could serve as attractor for classical solutions.Comment: 6 pages, 3 figures, title is changed, some refs added, to be published in Gen. Rel. and Gra