訂正日: 2006/10/20訂正理由: -訂正箇所: 引用文献情報訂正内容: Wrong : 1) M. Choda, Some relations of II1-factors on free groups, to appear in Math. Japon. 2) J. Feldman and C.C. Moore, Ergodic equivalence relations, cohomology, and von Neumann algebras, II, Preprint. 3) Y. Haga and Z. Takeda, Correspondence between subgroups and subalgebras in a cross product von Neumann algebra, Tohoku Math. J., 24 (1972), 167-190. 4) M. Nakamura and Z. Takeda, On the extensions of finite factors, I Proc. Japan Acad., 35 (1959), 149-154.
Right : [1] M. Choda, Some relations of II1-factors on free groups, to appear in Math. Japon. [2] J. Feldman and C. C. Moore, Ergodic equivalence relations, cohomology, and von Neumann algebras, II, Preprint. [3] Y. Haga and Z. Takeda, Correspondence between subgroups and subalgebras in a cross product von Neumann algebra, Tôhoku Math. J., 24 (1972), 167-190. [4] M. Nakamura and Z. Takeda, On the extensions of finite factors, I Proc. Japan Acad., 35 (1959), 149-154.
