Biomedical subjects

Sergio Dain

Publications and source records attributed to Sergio Dain.

2 recordsLinked to original sources

PubMed2006

Angular-momentum--mass inequality for axisymmetric black holes.

The inequality square root J <or=m is proved for vacuum, asymptotically flat, maximal, and axisymmetric data close to extreme Kerr data. The physical significance of this inequality and its relation to the standard picture of the gravitational collapse are discussed.

Journal Article↗

PubMed2004

A new geometric invariant on initial data for the Einstein equations.

For a given asymptotically flat initial data set for Einstein equations a new geometric invariant is constructed. This invariant measures the departure of the data set from the stationary regime; it vanishes if and only if the data are stationary. In vacuum, it can be interpreted as a measure of the total amount of radiation contained in the data.

Journal Article↗