From bending of light to positive mass: A non-PDE perspective
From bending of light to positive mass: A non-PDE perspective
Penrose et al. investigated the physical incoherence of the spacetime with negative mass via the bending of light. Precise estimates of the time-delay of null geodesics were needed and played a pivotal role in their proof. In this paper, we construct an intermediate diagonal metric and reduce this problem to …