Equivariant map μ: M → g* for a Hamiltonian G-action, characterised by d⟨μ,X⟩ = ι_{X_M}ω for every X ∈ g. Enables symplectic reduction M//G = μ⁻¹(0)/G, generalising quotient by symmetry.
Equivariant map μ: M → g* for a Hamiltonian G-action, characterised by d⟨μ,X⟩ = ι_{X_M}ω for every X ∈ g. Enables symplectic reduction M//G = μ⁻¹(0)/G, generalising quotient by symmetry.