A Hybrid Algebraic/Schr\"odinger Approach to the 2D Franck-Condon   Problem
  We use recent results regarding the geometry of the U(3) bosonic algebraic model to motivate a hybrid algebraic-Schr\"odinger approach to the 2D Franck-Condon problem analogous to 1D approaches. This approach allows one to analyze bent to linear Franck-Condon transitions of triatomic molecules as well as clarifies the angular momentum dependance of the Franck-Condon intensities. 
Michael W.N. Ibrahim