Comments on $\lambda$--deformed models from 4D Chern-Simons theory

We study the $\lambda$–deformation of symmetric coset models from the viewpoint of a four dimensional Chern-Simons theory \cite{CY3}. In addition, by applying the “dual” boundary conditions of the ones used in the construction $\eta$–deformed PCM in the trigonometric description \cite{TRIGYB} we construct a $\lambda$–deformation type model.