Robustness Against Indirect Invasions in Asymmetric Games

The concept of robustness against indirect invasions is well-known for symmetric games. We are concerned with the technical aspects and relevance of this concept for asymmetric games with continuous strategy space. For such games, we show that the set of all indirect neutral mutants of a robust profile is equivalent to a minimal evolutionarily stable set. It is also proved that a globally strong uninvadable profile is robust and the set of its indirect neutral mutants is a singleton. The results are illustrated using examples. Copyright (C) 2020 The Authors.