Part II: First Adventure (iii)

In this case we have substituted by replacing the rest mass with partial derivatives of the Lagrangian. Meaning that we remove any direct reference to rest mass (m instead of 'mu') in our formulation. We can do this in our case without implying that there are other particles in the neighbourhood.

Let's then proceed to writing the Hamiltonians for the mass taking advantage of the implications of our NPM by forming two Hamiltonian instead of just the one.