Definition of "invariancy"

Motivated by the violation of Lorentz invariancy in quantum gravity, we study black hole solutions in gravity's rainbow in the context of Einstein gravity coupled with various models of nonlinear electrodynamics.

2015, S. H. Hendi, S. Panahiyan, B. Eslam Panah, M. Momennia, “Thermodynamic instability of nonlinearly charged black holes in gravity's rainbow”, in arXiv‎