Frölicher–Nijenhuis bracket
= Frölicher–Nijenhuis bracket
{wiki=Frölicher–Nijenhuis_bracket}
The Frölicher–Nijenhuis bracket is a mathematical construct that comes from the field of differential geometry and differential algebra. It is a generalization of the Lie bracket, which is typically defined for vector fields. The Frölicher–Nijenhuis bracket allows us to define a bracket operation for arbitrary differential forms and multilinear maps.