Renormalization group flow of Chern-Simons boundary conditions and generalized Ricci tensor

Ján Pulmann, Pavol Ševera, Donald R. Youmans

We find a Chern-Simons propagator on the ball with the chiral boundary condition. We use it to study perturbatively Chern-Simons boundary conditions related to 2-dim $\sigma$-models and…