Cellular algebra

Physics

Mathematical analysis

Algebra over a field

Division algebra

Algebra representation

Eigenvalues and eigenvectors

Filtered algebra

Symmetric algebra

Pure mathematics

Geometry

Symmetry (geometry)

Matrix algebra

Mathematics

Mathematical physics

Quantum mechanics

Infinity

Current algebra

Classical and Quantum Gravity

We show how a global BMS4 algebra appears as part of the asymptotic symmetry algebra at spatial infinity. Using linearised theory, we then show that this global BMS4 algebra is the one introduced by Strominger as a symmetry of the S-matrix.

The BMS4 algebra at spatial infinity