Por Maciej Borodzik (Polish Academy of Sciences).

Given a periodic link L, we construct a group action on the Khovanov homotopy type defined by Lipshitz and Sarkar. As a result, we prove that the annular Khovanov homology of the quotient link has no larger rank than the Khovanov homology of the periodic link. This is a joint work with Wojciech Politarczyk and Marithania Silvero.