The singular locus of Lauricella's F_C
  We determine the singular locus of the Lauricella function $F_C$ by utilizing the theory of $D$-modules and Gr\"obner basis. The $A$-hypergeometric system associated to $F_C$ is also discussed. 
Ryohei Hattori and Nobuki Takayama
math.CA math.AC math.AG