PageHeader : Funkcialaj Ekvacioj, 12 (1969), 155-179 Title : Regular Perturbation for a Turning Title : Point Problem AuthorInfo : By Po-Fang HSIEH AuthorInfo : (Western Michigan University and University of Wisconsin) section : I. Introduction. subsection : 1. Turning point and reduction of problem. subsection : 2. Simplification. subsection : 3. The works of W. Wasow and R. Y. Lee subsection : 4. Main theorem. section : II. Proof of the Main Theorem. subsection : 5. Preliminary algorithm. subsection : 6. A lemma on nonlinear, differential equations. subsection : 7. Eguations for $\varphi_{k}(t,x,\mu,\beta)$ . subsection : 8. The function $\varphi_{0}(t,x,\mu,\beta)$ . subsection : 9. Path of integration and fundamental inequalities. subsection : 10. Global solution of $\varphi_{0}(t,x,\mu.\beta)$ . subsection : 11. Analyticity with respect to ƒÃ. section : References