sl(2,R) symmetry and solvable multiboson systems
  The one-mode and the two-mode multiboson systems with sl(2,R) symmetry are investigated.Hamiltonians of these systems are integrated using the theory of orthogonal polynomials. The coherent state representation for these systems is constructed. 
Tomasz Golinski, Maciej Horowski, Anatol Odzijewicz, Aneta Slizewska