Martin LeSourd (Mathematics) - BHI

Title: Extending beyond Cauchy horizons in Low Regularity

Abstract: In a spacetime that develops from initial data, there can come a point where the initial data no longer determines the spacetime. The boundary of the spacetime up to that point is called a ''Cauchy horizon''. Whether spacetimes that arise from generic (i.e., non-special) initial data produce Cauchy horizons, and, if they do, whether such spacetimes are extendible beyond their Cauchy...