  Since the proposal of the AdS/CFT correspondence, made by Maldacena and
Witten, there has been some controversy about the definition of conserved
Noether charges associated to asymptotic isometries in asymptotically AdS
spacetimes, namely, whether they form an anomalous (i.e., a nontrivial central
extension) representation of the Lie algebra of the conformal group in odd bulk
dimensions or not. In the present work, we shall review the derivation of these
charges by using covariant phase space techniques, emphasizing the principle of
locality underlying it. We shall also comment on how these issues manifest
themselves in the quantum setting.
