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