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.

### Volume 7, Number 2

#### Publication Date: 1996

Set Of $3\times 3$ Orthostochastic Matrices

Hiroshi NAKAZATO; 83-100

Some Starlikeness Conditions For Analytic Functions

Li Jian Lin; 101-112

All Solutions Of The Diophantine Equation $2^{a}X^{r}+2^{b}Y^{s}=2^{c}Z^{t}$ Where $r,$ $s$ And $t$ Are 2 Or 4

Yasutaka Suzuki; 113-145

Two Conditions On The Ricci Tensor Of A Real Hypersurface Of Complex Projective Space

JUAN DE DIOS PÉREZ, MIGUEL ORTEGA and YOUNG JIN SUH; 147-154

Moreau-Rockafellar Type Theorems For Generalized Subgradient Operator*)

Jia-Wen Chen and Hang-Chin Lai; 155-176

A Formula For The Minimum Gap Of Operators

RITSUO NAKAMOTO; 177-183

On Real Hypersurfaces In Quaternionic Projective Space With $\mathcal{D}^{\perp}$ -Parallel Second Fundamental Form

JUAN DE DIOS PÉREZ and YOUNG JIN SUH; 185-195