6. On classification of group actions on subfactors of type
III_\lambda,
Meeting, "On topics related to Operator Algebras",
University of Tokyo, Feb, 1997.
7. On classification of group actions on subfactors of type
III_\lambda (0\leq\lambda<1),
32nd Functional Analysis Meeting, Ikoi-no-nura, Konuma,
Jul, 1997.
8. On classification of group actions on subfactors of type
III_\lambda (0\leq\lambda<1),
Mathematical Society of Japan, Functional Analysis session,
University of Tokyo, Oct, 1997.
9. On classification of group actions on subfactors of type
III_\lambda (\lambda\ne1),
Operator Algebra Seminar, Nihon University, Oct, 1997.
10. On classification of group actions on subfactors of type
III_\lambda (0\leq\lambda<1),
Workshop on Operator Theory and Operator Algebras, Kyushu
University, Nov, 1997.
11. Extension of automorphisms of a subfactor to Popa's symmetric
enveloping algebra,
Functional Analysis Seminar, UCLA, Oct, 1998.
12. Extension of automorphisms of a subfactor to the symmetric
enveloping algebra,
Operator Algebra Seminar, University of Tokyo, Dec, 1998.
13. Extension of automorphisms of a subfactor to the symmetric
enveloping algebra,
Meeting "Hilbert C^*-modules and groupoid C^*-algebras",
RIMS, Kyoto University, Jan, 1999.
14. On classification of approximately inner actions on strongly
amenable subfactors,
Meeting "Progress in Operator Algebras",
RIMS, Kyoto University, Sep, 1999,
dvi file
15. Introduction to invariants for group actions,
34th Functional Analysis meeting,
Zao-Onsen Echo Hotel, Sep, 1999.
16. On classification of approximately inner actions on strongly
amenable subfactors,
Operator Algebra Seminar, University of Tokyo, Feb, 2000.
17. On classification of approximately inner actions on strongly
amenable subfactors,
Kansai Operator Algebra seminar, Osaka Kyoiku University,
Jul, 2000.
18. Elementary properties of crossed products,
35th Functional Analysis Meeting,
National Olympics Memorial Youth Center, Aug. 2000.
19. On non-strongly free automorphisms of subfactors of type III_0,
RIMS, Kyoto University, Jan. 2001.
20. On classification of approximately inner actions on strongly
amenable subfactors,
MSRI Operator algebra seminar, Mar. 2001,
dvi file,
21. On non-strongly free automorphisms of subfactors of type III_0,
Il Universita di Roma, seminar, Sep.2001.