Doppler effect and Hubble effect in different models of space-time in the case of auto-parallel motion of the observer

Doppler effect in Schwarzschild geometry

Doppler Effects from Bending of Light Rays in Curved Space-Times

Double Binary Pulsar Test of Dynamical Chern-Simons Modified Gravity

Double cosmic walls in Teleparallel Gravity

Double Darboux method for the Taub continuum

Double Michelson/Fabry-Perot interferometer for laser- and displacement-noise-free gravitational-wave detection

Double null formulation of the general Vaidya metric

Double optical spring enhancement for gravitational wave detectors

Double Scalar-Tensor Gravity Cosmologies

Double unification, time compression, and space flatness for the extended particle

Double-Kasner Spacetime: Peculiar Velocities and Cosmic Jets

Double-slit interference pattern from single-slit screen and its gravitational analogues

Doubly covariant action principle of singular hypersurfaces in general relativity and scalar-tensor theories

Doubly Special Relativity

Doubly Special Relativity and Finsler geometry

Doubly special relativity and translation invariance

Doubly Special Relativity as a Limit of Gravity

Doubly special relativity in de Sitter spacetime

Doubly Special Relativity with a minimum speed and the Uncertainty Principle