2 papers
math.DS2005
Calcul Moulien
Jacky Cresson
This paper is an introduction to mould calculus as introduced by Jean Ecalle. We give a precise definition of moulds and describe there main properties. We translate mould symmetri…
math.DS2005
About analytic non integrability
Jacky Cresson
We prove several general results on non existence of analytic first integrals for analytic diffeomorphisms possessing a hyperbolic fixed point.