Regulators and derivatives of Vologodsky functions with respect to log(p)

Abstract

We describe several instances of the following phenomenon: In bad reduction situations the \( p \)-adic regulator has a continuous and a discrete component. The continuous component is computed using Vologodsky integrals. These depend on a choice of the branch of the \( p \)-adic logarithm, determined by \( \log (p) \). They can be differentiated with respect to this parameter and the result is related to the discrete component.

31 pages