49 citations · 153 across the 17 of their papers we have counts for
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gr-qc2019★ 14 cited
Note on the symplectic structure of asymptotically flat gravity and BMS symmetries
Francesco Alessio, Michele Arzano
The Poisson brackets of the gravitational field at null infinity play a pivotal role in establishing the equivalence between the Ward identities involving BMS charges and the soft…
gr-qc2019★ 5 cited
A fuzzy bipolar celestial sphere
Francesco Alessio, Michele Arzano
We introduce a non-commutative deformation of the algebra of bipolar spherical harmonics supporting the action of the full Lorentz algebra. Our construction is close in spirit to t…