Vol. 22, No. 1 (January, 1970)
I. Hayashi
Embedding and existence theorems of infinite Lie algebra
1−14
M. Takahashi
A theorem on the second-order arithmetic with the ω-rule
15−24
S. I. Goldberg and K. Yano
Noninvariant hypersurfaces of almost contact manifolds
25−34
T. Otsuki
On principal normal vector fields of submanifolds in a Riemannian manifold of constant curvature
35−46
Y. Okabe
The resolution of an irregularity of boundary points in the boundary problem for Markov processes
47−104
S. Arima
Double ruled surfaces and their canonical systems
105−112
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