Abstract
The differential equation y$^{\prime \prime \prime}$ + yy$^{\prime \prime}$ + $\lambda $(1 - y$^{\prime 2}$) = 0 is of importance in boundary-layer theory. H. Weyl has shown that the equation has a solution which satisfies certain boundary conditions. The present paper gives a simple proof of Weyl's result and then investigates in detail the properties of all solutions of the equation.

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