The progress behavior of evolution strategies (ES) 
  using recombination is analyzed in
  this paper on the parabolic ridge. This test function represents landscapes
  far from the optimum. The ES algorithms with intermediate and dominant
  recombination are considered in the analysis. The derivations are presented 
  for intermediate recombination. 
  Thereafter, the formulae for dominant recombination are
  obtained using the so-called surrogate mutation model. 
  In the analysis, the formulae are derived for the progress rate $\PR$ and
  for the stationary distance $\Ri$ to the ridge axis. 
  As a result, it will be shown that the
  progress rate $\PR$ can increase if recombination is applied. 
  Simulations are used to show the appropriateness of the formulae derived.