MR0209597
Sibuya, Yasutaka and Takahasi, Ken-iti
null
On the differential equation {$(x+\varepsilon u)\,du/dx+q(x)u-r(x)=0$}
Funkcialaj Ekvacioj. Serio Internacia
9
1966
71--81
http://fe.math.kobe-u.ac.jp/FE/FullPapers/vol09/fe09-14.pdf
http://fe.math.kobe-u.ac.jp/FE/FE_pdf_with_bookmark/FE01-10-en_KML/fe09-071-081/fe09-071-081.pdf
http://www.ams.org/mathscinet-getitem?mr=MR0209597
fe09-071-081
1966
On the Diff.erential Equation $(x+\epsilon u)du/dx+q(x)u-r(x)=0$.
SIBUYA, Yasutaka; TAKAHASI, Ken-iti
SIBUYA, Yasutaka; TAKAHASI, Ken-iti
1
Lighthill, M. J.
A technique for rendering approximates solutions to physical problems uniformly valid
Phil. Mag.
40
1949
1179-1201
MR0033941
100
Cache/Li/Lighthill,approximates,Phil*,1949,1950
2
Turrittin, H. L.
A critique of the PLK-method
1958
000
Data is not found in MathSci.
Cache/Tu/Turrittin,PLK-method,*,1958,1959
3
Wasow, W. A.
On the convergence of an approximation method of M. J. Lighthill
J. Rat. Mech. Anal., and Correction.
4
1955
751-767
MR0073785
100
Cache/Wa/Wasow,approximation,J*,1955,1956