MG11 |
Participant |
Harriott, Tina | |
Institution |
Mount Saint Vincent University - 166 Bedford Highway - Halifax - Nova Scotia - CANADA | |
Session |
Talk |
Abstract |
GT6 |
Euler Numbers on Cobordant Hypersurfaces |
When two hypersurfaces are mediated by a Lorentz cobordism, a homology selection rule restricts the number of general relativistic kinks that can occur on the hypersurfaces. In 2+1 dimensions, this selection rule translates to the requirement that the difference in the number of kinks on the two hypersurfaces be balanced by a corresponding difference in Euler number. This is explored for a particular spacetime by using a tetrad-based Jacobian integral formula for calculating the kink number. |