Calabi-Yau conifold expansions
  We describe examples of computations of Picard-Fuchs operators for families of Calabi-Yau manifolds based on the expansion of a period near a conifold point. We find examples of operators without a point of maximal unipotent monodromy, thus answering a question posed by J. Rohde. 
Slawomir Cynk and Duco van Straten
math.AG