Memoirs of the Faculty of Science, Kochi University. Vol. 23 March 2001.

CHATYRKO, V.A. and JAFARI, S.:
On contra-θ-semicontinuous functions.
pp.1-7.

NIIZEKI, S. and OISHI, Y.:
On the convergence of sequence of sets and the continuity of measure.
pp.9-17.

GANSTER, M., JAFARI, S. and NOIRI, T.:
On pc-compact spaces.
pp.19-26.

NAKAI, H.:
The structure of Ext_BP*BP⁰(BP_*, M₁²) for p=3.
pp.27-44.

KOBAYASHI, T. and YOSHIDA, T.:
Extendibility, stable extendibility and span of some vector bundles over real projective spaces.
pp.45-56.

FUKUMA, Y. and MATSUNAGA, H.:
Almost complex vector fields on a family of elliptic K3 surfaces.
pp.57-72.

ICHIGI, I.:
The chromatic groups H⁰M₂¹(T(2)) at the prime two.
pp.73-92.

ISHIGURO, S. and KOMATSU, K.:
Symmetries of cut-and-project tilings corresponding to exceptional folding.
pp.93-97.

KIKUCHI, Y. and NOMAKUCHI, K.:
Two modifications of hidden Markov model and their model comparison.
pp.99-127.