Generalizing the ${\mathfrak{bms}}_3$ and 2D-conformal algebras by expanding the Virasoro algebra

Ricardo Caroca, Patrick Concha, Evelyn Rodríguez +1

By means of the Lie algebra expansion method, the centrally extended conformal algebra in two dimensions and the ${\mathfrak{bms}}_3$ algebra are obtained from the Virasoro algebra…