a Nonlinear Systems Laboratory, Mathematics Institute, University of Warwick, Coventry CV4 7AL, UK
b Matemática Aplicada, Universidade do Porto, Porto, Portugal
c CEBAF, 12000 Jefferson Avenue, Newport News, VA 23606, USA
Abstract:
The coordinate change eigenvalues for the MacKay and van Zeijts period doubling renormalisation operator for bimodal 1 D maps are derived. They are found in numerical computations of the spectrum at all the periodic orbits of renormalisation of period up to five.