  Genetic algorithms (GAs) are an optimization technique that has been
successfully used on many real-world problems. There exist different approaches
to their theoretical study. In this paper we complete a recently presented
approach to model one-point crossover using pretopologies (or Cech topologies)
in two ways. First, we extend it to the case of n-points crossover. Then, we
experimentally study how the distance distribution changes when the number of
crossover points increases.
