The title: 4d Lagrangians From 6d RG Flows

SCFTs in 6d are interrelated by networks of RG flows. Compactifying such models on a Riemann surface with flux for the 6d global symmetry, one can obtain a wide variety of theories in 4d. These 4d models are also related by a network of RG flows. We will show a dictionary that was found between the 6d RG flows and the 4d RG flows. We claim this dictionary is general and show various examples where it holds. This dictionary then will allow us to find many Lagrangians for theories that had no known Lagrangian description before. These descriptions in turn lead to many examples of dualities and symmetry enhancements.