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 17, Number 2

#### Publication Date: 2006

Galois Points on Quartic Curves in Characteristic 3

SATORU FUKASAWA; 103-110

Isometric Composition Operators between Two Weighted Hardy Spaces

Takahiko Nakazi; 111-124

Reverses of Operator Inequalities on Operator Means

MASATOSHI FUJII, RITSUO NAKAMOTO and SATIYO SUGIYAMA; 125-133

On the Geodesics in the Orthonormal Frame Bundle of a Riemannian Manifold

Xiao Rong Zou; 135-154

Weyl Type Theorems for a Certain Class of Operators

SALAH MECHERI; 155-165

Conformal Transformations on Carnot-Caratheodory Spaces

Lei Jiao and Peibiao Zhao; 167-185

The $C$ -Numerical Range of a $3\times 3$ Normal Matrix

Hiroshi NAKAZATO; 187-197

Linear Operators Preserving Left Unitarily Invariant Norms on Matrices

TAKASHI SANO; 199-204