How the (1+1) ES using isotropic mutations minimizes positive definite quadratic forms.

Jens Jägersküpper How the (1+1) ES using isotropic mutations minimizes positive definite quadratic forms. 38-56 2006 361 Theor. Comput. Sci. 1 http://dx.doi.org/10.1016/j.tcs.2006.04.004 db/journals/tcs/tcs361.html#Jagerskupper06