1) What is wiki for?
2) (123) means x1 becomes x2, x2 becomes x3, x3 becomes x1 and similarly for (321). These algebraic objects are called - quite clearly - "permutations".
hey, i have two simple questions - my notes aren't what they should be.
What is the definition of, and how do i test for a hopf bifurcation in system equations.
in permutations of 3d vectors, i know (12) corresponds to swapping x1 and x2 but what does (123) or (321) correspond to?