Paper 3, Section I, E

Dynamical Systems
Part II, 2009

Consider the one-dimensional real map xn+1=F(xn)=rxn2(1xn)x_{n+1}=F\left(x_{n}\right)=r x_{n}^{2}\left(1-x_{n}\right), where r>0r>0. Locate the fixed points and explain for what ranges of the parameter rr each fixed point exists. For what range of rr does FF map the open interval (0,1)(0,1) into itself?

Determine the location and type of all the bifurcations from the fixed points which occur. Sketch the location of the fixed points in the (r,x)(r, x) plane, indicating stability.