Key points are not available for this paper at this time.
Hamilton's principle is used to derive the force equation for both nonrelativistic and relativistic flow of a compressible, one-species, inviscid fluid. Rotational flow is predicted by use of Lin's constraint. Lin's constraint is given a physical interpretation and found to be considerably simplified by use of four-dimensional notation.
P. Penfield (Wed,) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: