2 papers
gr-qc2026
Hawking-type singularity theorems for worldvolume energy inequalities
Melanie Graf, Eleni-Alexandra Kontou, Argam Ohanyan +1
The classical singularity theorems of R. Penrose and S. Hawking from the 1960s show that, given a pointwise energy condition (and some causality as well as initial assumptions), sp…
math.DG2025
Equivalence of the null energy condition to variable lower bounds on the timelike Ricci curvature for -Lorentzian metrics
Melanie Graf, Yaver Gulusoy
The null energy or null convergence condition (NEC) is one of the fundamental assumptions necessary for many celebrated results from Lorentzian Geometry and Mathematical General Re…