Lie Algebras of Differential Operators and Partial Integrability
  This paper surveys recent work on Lie algebras of differential operators and their application to the construction of quasi-exactly solvable Schroedinger operators. 
Federico Finkel(1), Artemio Gonzalez-Lopez(1), Niky Kamran(2), Peter   J. Olver(3), and Miguel A. Rodriguez(1) ((1) Dept. de...