Oseen formulated the fundamentals of the elasticity theory of liquid crystals (Oseen elasticity theory), and, with Horace Lamb, gave his name to the Lamb-Oseen vortex.
Oseen formulated the fundamentals of the elasticity theory of liquid crystals (Oseen elasticity theory), as well as the Oseen equations for viscous fluid flow at small Reynolds numbers. And, with Horace Lamb, gave his name to the Lamb-Oseen vortex.