Moduli Structures, Separability of the Kinematic Hilbert Space and   Frames in Loop Quantum Gravity
  We reassess the problem of separability of the kinematic Hilbert space in loop quantum gravity under a new mathematical point of view. We use the formalism of frames, a tool used in signal analysis, in order to remove the redundancy of the moduli structures in high valence graphs, without resorting to set extension of diffeomorphism group. For this, we introduce a local redundancy which encodes the concentration of frame vectors on the tangent spaces $T_pM$ around points of intersections $p$ of smooth loops $\alpha$ in $\mathbb{R}^{3}$. 
Bruno Carvalho, Daniel H. T. Franco
gr-qc math-ph math.MP