Title: Holographic dual of generalized symmetry, mixed anomaly, and interfaces in N = 4 SYM

Abstract: I discuss N = 4 SYM theories with su(N) gauge algebra, classified by quotient discrete groups and line (and surface) operators, via the holographic dual description. The one-form symmetries and the line operator spectrum of different theories are realized by different boundary conditions on the NSNS and RR 2-forms in type IIB string theory on AdS_5 x S^5. The topics included are the SL(2,Z) duality orbit, mixed 't Hooft anomaly involving the one-form and CP symmetries, and interfaces between the theories with different values of the theta parameter.