arXiv subjects

Igor E. Gulamov

Publications and source records attributed to Igor E. Gulamov.

2 recordsLinked to original sources

arXiv2011

Submanifolds in five-dimensional pseudo-Euclidean spaces and four-dimensional FRW universes

Equations for submanifolds, which correspond to embeddings of the four-dimensional FRW universes in five-dimensional pseudo-Euclidean spaces, are presented in convenient form in general case. Several specific examples are considered.

gr-qc↗

arXiv2011

Submanifolds in spacetime with an auxiliary unphysical extra dimension and four-dimensional open and closed FRW universes

The explicit coordinate transformations which show the equivalence between the FRW metrics of four-dimensional open and closed universes and the metrics induced on appropriate submanifolds in a five-dimensional pseudo-Euclidean space-time are presented.

gr-qc↗