Subaction

(without references, thought by myself)

Given a group action of $G$ on a space $X$, a subaction is the action of $G$ on a subset $Y\subset X$ which is invariant by $G$, that is, $Y$ is the union of orbits

________________________________________

________________________________________

________________________________________

Author of the notes: Antonio J. Pan-Collantes

antonio.pan@uca.es