MR0206385
Takahasi, Mitiko
Mitiko TAKAHASI
On a non selfadjoint ordinary differential operator
Funkcialaj Ekvacioj. Serio Internacia
8
1966
109--141
http://fe.math.kobe-u.ac.jp/FE/Free/vol08/fe08-8.pdf
http://fe.math.kobe-u.ac.jp/FE/FE_pdf_with_bookmark/FE01-10-en_KML/fe08-109-141/fe08-109-141.pdf
http://www.ams.org/mathscinet-getitem?mr=MR0206385
fe08-109-141
1966
On a Non Selfadjoint Ordinary Differential Operator
TAKAHASI, Mitiko
TAKAHASI, Mitiko
1
Kimura, T.; Takahasi, M.
Sur les opérateurs différentiels ordinaires linéaires formellement autoadjoints I
Funkcialaj Ekvacioj
7
1965
35-90
MR0183923
0183923
100
Cache/Ki/Kimura,Sur,Funkciala*,1965,1966
2
Kodaira, K.
On ordinary differential equations of any even order and the corresponding eigenfunction expansions
Amer. J. Math.
72
1950
502-544
MR0036404
100
Cache/Ko/Kodaira,corresponding,Amer*,1950,1951
3
Sims, A. R.
Secondary conditions for linear differential operators of the second order
J. Math. Mech.
6
1957
247-285
MR0086224
100
Cache/Si/Sims,conditions,J*,1957,1958