Contents:
Tamotsu Izumida. On some generalized triangle inequalities and $\ell_{\psi}$-spaces. 75--83.
Osamu Hatori. Commuting pairs of normal operators. 85--90.
Satomi Murakami, Hiroki Ohwa. Periodic points of some discontinuous maps. 91--101.
Kazuhiro Konno. A note on smooth multiple fibers in pencils of algebraic curves. 103--120.
Osamu Hatori. Maps on the sphere of the algebras of matrices. 121--125.
Matteo Dalla Riva, Sin-Ei Takahasi. A note on the extensions of the inversion map to the absorbing elements of a semigroup. 127--134.
Yutaka Saito, Tamaki Tanaka. A set-valued generalization of Ricceri's theorem related to Fan-Takahashi minimax inequality. 135--144.