Hamiltonian dynamics and the hidden symmetries of the AdS₅ x S⁵ superstring

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We construct the Lax connection of the Green-Schwarz superstring in AdS₅ x S⁵ within the Hamiltonian formalism and obtain precisely that used in 0810.4136. It differs in a crucial way from the Bena-Polchinski-Roiban connection by terms proportional to the Hamiltonian constraints. These extra terms ensure firstly that the integrals of motion are all first class and secondly that the Lax connection is flat in the strong sense.