The Nihonkai Mathematical Journal publishes original contributions in all disciplines in mathematics. Between 1964 and 1989, the journal was known as the Science Reports of Niigata University. Series A, Mathematics. Prior to that, Niigata University published mathematical literature as part of the Journal of the Faculty of Science, Niigata University. Series I, Mathematics, Physics and Chemistry.

### Number 14

#### Publication Date: 1977

On Maximality Of $H^{\infty}(\alpha)$ In Finite von Neumann Algebras

Kichi-Suke SAITO; 1-3

3-dimensional Homogeneous Riemannian Manifolds I

Kouei SEKIGAWA; 5-14

On Continuous Time Markov Games With The Expected Average Reward Criterion

Kensuke TANAKA and Kazuyoshi WAKUTA; 15-24

On The Structure Of P-class Groups Of Certain Number Fields

Teruo TAKEUCHI; 25-33

On The Quasi-spannability Of Graphs

Chiko YOSHIOKA; 35-40

A Note On $SO(3)$ -action On $CP_{3}$

Akira IGAWA and Tsuyoshi WATABE; 41-46

On The Linear Maps Which Are Multiplicative On Complex $*$ -algebras

Shun-ichi TOMITA; 47-51