BIRS Workshop Lecture Videos
Twisted M theory, the Maulik-Okounkov Yangian, and the AdS dual of the Beem-Rastelli twist of the (2,0) theory Costello, Kevin
I will give a conjectural description of a twist of 11 dimensional supergravity, which I will argue is AdS dual to a twist of the six dimensional (2,0) theory. I will argue that the algebra of operators of the gravity theory is Koszul dual to the Yangian studied by Maulik-Okounkov, which arises as the large N limit of the affine W algebra and which acts on the cohomology of the moduli space of instantons. This is an example of a general framework expressing the AdS/CFT correspondence in terms of Koszul duality for factorization algebras.
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