Null energy in plane Kaluza-Klein worlds

Null Geodesic Congruences, Asymptotically Flat Space-Times and Their Physical Interpretation

Null Geodesic Expansion in Spherical Gravitational Collapse

Null geodesics and shadow of a rotating black hole in extended Chern-Simons modified gravity

Null Geodesics in Five Dimensional Manifolds

Null geodesics in the Alcubierre warp drive spacetime: the view from the bridge

Null geodesics in the Reissner-Nordström Anti-de Sitter black holes

Null infinity and an electromagnetic analog of the relativistic Kepler problem

Null infinity waveforms from extreme-mass-ratio inspirals in Kerr spacetime

Null injectivity estimate under an upper bound on the curvature

Null limits of generalised Bonnor-Swaminarayan solutions

Null limits of the C-metric

Null particle solutions in three-dimensional (anti-) de Sitter spaces

Null Result for the Violation of Equivalence Principle with Free-Fall Rotating Gyroscopes

Null Singularities in Colliding Waves

Null Singularity Formation by Scalar Fields in Colliding Waves and Black Holes

Null Surfaces and Legendre Submanifolds

Null Surfaces and the Bach Equations

Null surfaces formulation in 3D

Null vector fields in spaces with affine connections and metrics. Doppler's effect, Hubble's effect, and aberration's effect