activity
20002026
most citedDeforming a Lie algebra by means of a two form

17 citations · 75 across the 26 of their papers we have counts for

collaborators
Showing 2007 · gr-qcShow all

2 papers · 2 filters

gr-qc2007★ 6 cited

Twisting type N vacuums with cosmological constant

Pawel Nurowski

We provide the first examples of vacuum metrics with cosmological constant which have a twisting quadruple principal null direction.

gr-qc2007★ 2 cited

On Penrose's `before the big bang' ideas

C. Denson Hill, Pawel Nurowski

We point out that algebraically special Einstein fields with twisting rays exhibit the basic properties of conformal Universes considered recently by Roger Penrose.