Dwork B. Lectures on P-Adic Differential Equations

New York: Springer, 1982. — 317 p.Second Order Linear Differential Equations Modulo
Dieudonné Theory
Canonical Liftings
Semisimplicity
Abelian Differentials
Supersingular Disks
The Function t on Supersingular Disks
The Defining Relation for the Canonical Lifting
Analytic Factors of Power Series
p-adic Gamma Functions
p-adic Beta Functions
Beta Functions as Residues
Singular Disks Part I
Singular Disks Part II Nonlogarithmic Case
Singular Disks Part III Logarithmic CaseSemisimplicity