MR0254374
Hsieh, Po-fang
Po-Fang HSIEH
Regular perturbation for a turning point problem
Funkcialaj Ekvacioj. Serio Internacia
12
1969
155--179
http://fe.math.kobe-u.ac.jp/FE/Free/vol12/fe12-9.pdf
http://fe.math.kobe-u.ac.jp/FE/FE_pdf_with_bookmark/FE11-20-en_KML/fe12-155-179/fe12-155-179.pdf
http://www.ams.org/mathscinet-getitem?mr=MR0254374
fe12-155-179
1969
Regular Perturbation for a Turning Point Problem
HSIEH, Po-Fang
HSIEH, Po-Fang
1
Iwano, M.
Asymptotic solutions of a system of linear ordinary differential equations containing a small parameter, I
Funk. Ekv.
5
1963
71-134
MR0171045
0171045
100
Cache/Iw/Iwano,Asymptotic,Funk*,1963,1964
1
Iwano, M.
Asymptotic solutions of a system of linear ordinary differential equations containing a small parameter, II
Funk. Ekv.
6
1964
89-141
MR0176179
0176179
75
Cache/Iw/Iwano,Asymptotic,Funk*,1964,1965
2
Lee, R. Y.
Turning point problems of almost diagonal systems
J. of Math. Analy. and Appl.
24
1968
509-526
MR0234071
100
Cache/Le/Lee,problems,J*,1968,1969
3
Sibuya, Y.
Simplification of a system of linear ordinary differential equations. about a singular point
Funk. Ekv.
4
1962
29-56
MR0152719
0152719
100
Cache/Si/Sibuya,Simplification,Funk*,1962,1963
4
Turrittin, H. L.
Solvable related equations pertaining to turning point problems
Proc. of MRC Symp. on asymptotic solutions of differential equationsand their applications, John Wiley New York, N. Y.
1964
27-52
MR0192150
Cache/Tu/Turrittin,pertaining,John*,1964,1965
5
Wasow, W.
Asymptotic expansions for ordinary differential equations
Interscience Publishers New York, N. Y.
1965
MR0203188
Cache/Wa/Wasow,Asymptotic,Interscience*,1965,1966
6
Wasow, W.
On the analytic validity of formal simplifications of linear differential equations, I
Funk. Ekv.
9
1966
83-91
MR0212305
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100
Cache/Wa/Wasow,simplifications,Funk*,1966,1967
6
Wasow, W.
On the analytic validity of formal simplifications of linear differential equations, II
Funk. Ekv.
10
1967
107-122
MR0227540
0227540
91
Cache/Wa/Wasow,simplifications,Funk*,1967,1968