9 citations · 25 across the 10 of their papers we have counts for
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math.DG2015★ 1 cited
Equations of Motion with Respect to the Threading of a Universe
Aurel Bejancu
We continue our research work started in "Kinematic Quantities and Raychaudhuri Equations in a Universe" (Eur. Phys. J. C, 2015), and obtain in a covariant form, the equations…
gr-qc2015
Kinematic Quantities and Raychaudhuri Equations in a Universe
Aurel Bejancu
Based on some ideas emerged from the classical Kaluza-Klein theory, we present a universe as a product bundle over the spacetime. This enables us to introduce and study t…
math.DG2015★ 8 cited
On the (1+3) threading of spacetime with respect to an arbitrary timelike vector field
Aurel Bejancu, Constantin Călin
We develop a new approach on the (1+3) threading of spacetime with respect to a congruence of curves defined by an arbitrary timelike vector field. The study is based on s…