1997/01/15 by de Carvalho, Andre
#Dynamical Systems (math.DS) #FOS: Mathematics
paper · doi:10.48550/arxiv.math/9701217
Let f:E -> E be a homeomorphism of the plane E. We define open sets P, called \em pruning fronts after the work of Cvitanović, for which it is possible to construct an isotopy H: E x [0,1] -> E with open support contained in the union of fn(P), such that H(*,0)=f(*) and H(*,1)=fP(*), where fP is a homeomorphism under which every point of P is wandering. Applying this construction with f being Smale's horseshoe, it is possible to obtain an uncountable family of homeomorphisms, depending on infinitely many parameters, going from trivial to chaotic dynamic behaviour. This family is a 2-dimensional analog of a 1-dimensional universal family.