**abstract:**
We will talk about an approximation of the activity current Tc in the
parameter space of a holomorphic family f of rational functions having
a marked critical point c by parameters for which c is periodic under f,
i.e., is a superattracting periodic point. This partly generalizes a Dujardin-
Favre theorem for rational functions having preperiodic points, and refines a
Bassanelli-Berteloot theorem on a similar approximation of the bifurcation
current Tf of the holomorphic family f.

Fri 27 Mar, 14:30 - 15:10, Aula Dini

Okuyama

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