14:00-15:00: Anne Moreau (Laboratoire de Mathématiques d’Orsay): W-algebras as conformal extensions of affine vertex algebras

15:15-16:15: Quan Situ (Clermont Auvergne University): Extension between simple and costandard modules in the modular BGG category O

17:00-18:00: Lennart Meier (Utrecht University): From conformal field theories to topological modular forms