Mepụta nsụgharị dị mgbagwoju anya nke ahịrịokwu a Estakhr's Ihe - Geodesic equations bụ ihe atụ mepụtara nke Navier - Stokes equations.
N'ezie, ụdị okwu dị mgbagwoju anya nke ahịrịokwu ahụ bụ "Estakhr's Material - Geodesic equations is developed model of Navier - Stokes equations in an umbrella term, It is relativistic version of NS - equations, And that is why it is so important. "