Analytic Continuation of Hypergeometric Functions in the Resonant Case

Understand

We perform the analytic continuation of solutions to the hypergeometric differential equation of order $n$ to the third regular singularity, usually denoted $z=1$, with the help of recurrences of their Mellin--Barnes integral representations.

• In the resonant case, there are necessarily logarithmic solutions.
• We apply the result to Picard-Fuchs equations of certain one--parameter families of Calabi--Yau manifolds, known as the mirror quartic and the mirror quintic.