1

Eine Umkehrung der Sturm-Liouvilleschen Eigenwertaufgabe

Year:
1946
Language:
german
File:
PDF, 3.89 MB
german, 1946
3

On the Point Spectra of y" + (λ - q(x))y = 0

Year:
1951
Language:
english
File:
PDF, 361 KB
english, 1951
6

On a Liapounoff Criterion of Stability

Year:
1949
Language:
english
File:
PDF, 278 KB
english, 1949