TITLE: Local study of a renormalization operator for 1D maps under quasiperiodic forcing AUTHORS: Angel Jorba^(1), Pau Rabassa^(2) and Joan Carles Tatjer^(1) (1) Departament de Matematica Aplicada i Analisi Universitat de Barcelona, Gran Via 585, 08007 Barcelona, Spain (2) School of Mathematical Sciences, Queen Mary University of London, Mile End Road, London E1 4NS, United Kingdom E-mails: angel@maia.ub.es, p.sans@qmul.ac.uk, jcarles@maia.ub.es ABSTRACT: The authors have recently introduced an extension of the classical one dimensional (doubling) renormalization operator to the case where the one dimensional map is forced quasiperiodically. In the classic case the dynamics around the fixed point of the operator is key for understanding the bifurcations of one parameter families of one dimensional unimodal maps. Here we perform a similar study of the (linearised) dynamics around the fixed point for further application to quasiperiodically forced unimodal maps.