On Dwork's accessory parameter problem
- Cite this article as:
- Beukers, F. Math Z (2002) 241: 425. doi:10.1007/s00209-002-0424-8
We study the question which ordinary second order linear differential equation allows power series solutions whose p-adic radius of convergence is at least one, a question raised by B.Dwork. In particular we shall consider the case of Fuchsian equations with four singularities and local exponent differences 0.