Horizon area–angular momentum inequality in higher-dimensional spacetimes
Horizon area–angular momentum inequality in higher-dimensional spacetimes
We consider n-dimensional spacetimes which are axisymmetric—but not necessarily stationary—in the sense of having isometry group U(1)n − 3 and which satisfy the Einstein equations with a non-negative cosmological constant. We show that any black hole horizon must have area , where J± are distinguished components of the angular momentum …