On the relations of cup product with inflation and deflation in thecohomologygroups of permutation representations. Math. Inst. Tokyo kyoiku Daigaku vol.10 196;
Theory of Convex Functions (Japanese). J. of Faculty Liberal Arts 24 (1990)
Cocleft Module Coalgebras for a Bialgebra. J. of Faculty Liberal Arts 21 (1987);
NOTE ON MORPHISMS OF AFFINE ALGEBRAIC GROUPS. MATH. J. of OKAYAMA JNIVERSITY 18 31 (1975);
On the relations of cup product with inflation and deflation in thecohomologygroups of permutation representations. Math. Inst. Tokyo kyoiku Daigaku vol.10 196;
