math.DG math-ph math.AP math.MG math.MP 83C75, 35J92 35Q75, 49Q22, 51K10, 53C21 53C50 58J05
An elliptic proof of the splitting theorems from Lorentzian geometry
Mathias Braun Nicola Gigli Robert J. McCann Argam Ohanyan Clemens Sämann