GT15. Group Actions

Abstract Algebra: Group actions are defined as a formal mechanism that describes symmetries of a set X. A given group action defines an equivalence relation, which in turn yields a partition of X into orbits. Orbits are also described as cosets of the group. U.Reddit course materials available at http://ureddit.com/class/23794/intro-... Master list at http://mathdoctorbob.org/UReddit.html