Null Geodesics and Gravitational Lensing in a Nonsingular Spacetime
The null geodesics and gravitational lensing in a nonsingular spacetime are investigated.According to the nature of the null geodesics, the spacetime is divided into several cases.In the weak deflection limit, we find the influence of the nonsingularity parameter q on the positions and magnifications of the images is negligible.In the strong deflec