On reducible monodromy representations of some generalized Lam\'e   equation
  In this note, we compute the explicit formula of the monodromy data for a generalized Lam\'{e} equation when its monodromy is reducible but not completely reducible. We also solve the corresponding Riemman-Hilbert problem. 
Zhijie Chen, Ting-Jung Kuo, Chang-Shou Lin, Kouichi Takemura
math.CA