e/Moment map

Information
has gloss	eng: In mathematics, specifically in symplectic geometry, the moment map (or momentum map) is a tool associated with a Hamiltonian action of a Lie group on a symplectic manifold, used to construct conserved quantities for the action. The moment map generalizes the classical notions of linear and angular momentum. It is an essential ingredient in various constructions of symplectic manifolds, including symplectic (Marsden-Weinstein) quotients, discussed below, and symplectic cuts and sums.
lexicalization	eng: moment map
instance of	e/Group action