p-adic shift

[Diana Bosio <D.Bosio@qmw.ac.uk>]

Dear all,

I am working on p-adic dynamics and would like to use PARI in library
mode for some of my computations.  One of operations I need to perform
is a p-adic shift.  I know there is a dyadic shift, I would like to
know if there is an analogue for p (apart from the obvious division by
p^n). If not, can I rely on the division by p^n as being exact,
provided I am in the ideal (p^n)?

Thanks,

Diana
--
* Diana Bosio
* Mathematics Research Centre, School of Mathematical Sciences
* QMW College, Mile End Road, London E1 4NS (U.K.)
* Tel: +44-(0)20-7882 5466      Fax: +44-(0)181-981 9587                    
* e-mail: D.Bosio@qmw.ac.uk