4-Dimensional General Relativity from the instrinsic spatial geometry of SO(3) Yang--Mills theory

4-Dimensional Kaluza-Klein Approach to General Relativity in the (2,2)-Splitting of Spacetimes

4-Dimensional optics, an alternative to relativity

4-dimensional Spin-foam Model with Quantum Lorentz Group

4d Deformed Special Relativity from Group Field Theories

4D diffeomorphisms in canonical gravity and abelian deformations

4d Lorentzian Holst action with topological terms

4d neutral dilatonic black holes and (4+p) dimensional nondilatonic black p-branes

4D quantum black hole physics from 2D models?

4D spacetimes embedded in 5D light-like Kasner universes

4D static solutions with interacting phantom fields

4D Wormhole with Signature Change in the Presence of Extra Dimensions

5-dimensional Brans-Dicke Theory and Cosmic Acceleration

5-Dimensional Covariance and Generation of Solutions of Einstein Equations

5-Dimensional Kaluza-Klein Theory with a Source

5-dimensional solution with acceleration and small variation of G

5-dimensional special relativistic hydrodynamics and cosmology

5D Axisymmetric Stationary Solutions as Harmonic Maps

5D gravitational waves from complexified black rings

5D gravity and the discrepant G measurements