The AdS/CFT correspondence should not be confused with algebraic holography or "Rehren duality"; although these are sometimes identified with AdS/CFT, string theorists agree that they are different things.
The AdS/CFT correspondence should not be confused with algebraic holography or "Rehren duality". Although it was proposed as a mathematically rigorous formulation of the AdS/CFT correspondence in the framework of algebraic quantum field theory, string theorists agree that they are different things.