3d-3d correspondence and 2d N = (0, 2) boundary conditions

A bstract We consider quiver forms that appear in the motivic Donaldson-Thomas generating series or characters of conformal field theories and relate them to 3d N = 2 theories on D 2 × q S 1 with certain boundary conditions preserving 2d N = (0, 2) supersymmetry. We apply this to the 3d-3d correspondence and provide a Lagrangian description of 3d N = 2 theories T [ M 3 ] with 2d N = (0, 2) boundary conditions for 3-manifolds M 3 in several contexts.