text: The fundamental solution due to a singular point force embedded in an Oseen flow is the Oseenlet.  The closed-form fundamental solutions for the generalized unsteady Stokes and Oseen flows associated with arbitrary time-dependent translational and rotational motions have been derived for the Newtonian and micropolar fluids.
  Using the Oseen equation, Horace Lamb was able to derive improved expressions for the viscous flow around a sphere in 1911, improving on Stokes law towards somewhat higher Reynolds numbers. Also, Lamb derived—for the first time—a solution for the viscous flow around a circular cylinder.
  The solution to the response of a singular force  when no external boundaries are present be written as
  If , where  is the singular force concentrated at the point  and  is an arbitrary point and  is the given vector, which gives the direction of the singular force, then in the absence of boundaries, the velocity and pressure is derived from the fundamental tensor  and the fundamental vector 
  Now if  is arbitrary function of space, the solution for an unbounded domain is
  where  is the infinitesimal volume/area element around the point .