Evolutionary Stability Against Multiple Mutations
  It is known (see e.g. Weibull (1995)) that ESS is not robust against multiple mutations. In this article, we introduce robustness against multiple mutations and study some equivalent formulations and consequences. 
Anirban Ghatak, K. S. Mallikarjuna Rao, A. J. Shaiju
math.OC q-bio.PE