A. Berretti, S. Marmi
Scaling, Perturbative Renormalization and Analyticity for the 
Standard Map and Some Generalizations
(296K, Postscript)

ABSTRACT.  We summarize some numerical works on the analyticity properties of the
perturbative series for some simple discrete-time hamiltonian systems like 
the so-called "standard map" and generalizations. We stress the relevance of
our results for the development of a renormalization group picture
based on perturbation theory.
(Date: 23 june 1993)