The universal black-hole inequality with angular momentum and charges
The universal black-hole inequality with angular momentum and charges
Consider an asymptotically flat black-hole spacetime with ADM mass , horizon area , angular momentum , electric charge , and magnetic charge . Define the irreducible mass by
Universal black-hole inequality conjecture. The mass should satisfy
or equivalently
The source calls this the cosmic-censorship master inequality: violation would imply a naked singularity. It gives no definitive resolution status.
Sources & referencesView supporting material
Primary source
Da Xu, “The Angular Momentum Penrose Inequality”, arXiv:2512.06918 (2026).
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