"4th Workshop on Nilpotent Orbits and Representation Theory" 
     Date: February 21 (Saturday) -- February 24 (Tuesday), 2004 
     Place: Room 309 in Science Bldg #1, Nagoya University.
     Organizers: Kyo Nishiyama   (Kyoto University)
                 Hiroyuki Ochiai (Nagoya University)

http://w3rep.math.h.kyoto-u.ac.jp/meeting/north2004nagoya.html

Speakers:

Laurent Manivel   (Institut Fourier, Universit\'{e} de Grenoble)
Eric Sommers      (University of Massachusetts at Amherst)

Toshihiko Matsuki (Kyoto Univeristy) 
Hiro-Fumi Yamada  (Okayama Univeristy)  
Hajime Kaji       (Waseda Univeristy) 
Atsushi Kamita    (Osaka City University)
Toshiyuki Kobayashi (RIMS, Kyoto University)
Jiro Sekiguchi    (Tokyo Univeristy of Agriculture & Technology) 
Hiroshi Oda       (Takushoku Univeristy) 
Soo-Teck Lee      (National Univeristy of Singapore) 
Pavle Pandzic     (University of Zagreb) 
Akihito Wachi     (Hokkaido Institute of Technology)


 --- February 21, 2004 (Saturday) ---------------------------------------------------

13:00 -- 13:50  Hiroyuki Ochiai (Nagoya University)
Orbits of the pair of symmetric/skew-symmetric matrices and its application.

14:10 -- 15:00  Toshikiko Matsuki (Kyoto University)
Equivalence of domains arising from duality of orbits on flag manifolds

15:30 -- 16:20  Jiro Sekiguchi (Tokyo Univeristy of Agriculture & Technology)
TBA

16:40 -- 17:30  Soo-Teck Lee (National Univeristy of Singapore) 
A  basis for the $ (GL_n(C), O_n(C)) $ branching Algebra


 --- February 22, 2004 (Sunday) ---------------------------------------------------

 9:30 -- 10:30  Eric Sommers (University of Massachusetts at Amherst)
"Ideals in the nilradical of a Borel subalgebra and nilpotent orbits"; 
Talk 1:  "Ideals in the nilradical, from a combinatorial perspective"

11:00 -- 12:00  Laurent Manivel (Institut Fourier, Universit\'{e} de Grenoble)
Exceptional groups and normed algebras I

13:30 -- 14:20  Hajime Kaji (Waseda Univeristy) 
Projective geometry of Freudenthal's varieties of certain type

14:40 -- 15:30  Hiroshi Oda (Takushoku Univeristy) 
Generalization of the Harish-Chandra isomorphism

16:00 -- 16:50  Atsushi Kamita (Osaka City University)
Universal Verma modules and $b$-functions

17:10 -- 18:00  Kenji Taniguchi (Aoyama Gakuin University)
On the symmetry of commuting differential operators with singularities along hyperplanes

** There is a dinner party in the evening.


 --- February 23, 2004 (Monday)  ---------------------------------------------------

 9:30 -- 10:30  Eric Sommers (University of Massachusetts at Amherst)
"Ideals in the nilradical of a Borel subalgebra and nilpotent orbits"; 
Talk 2:  "Normality of nilpotent varieties"

11:00 -- 12:00  Laurent Manivel (Institut Fourier, Universit\'{e} de Grenoble)
Exceptional groups and normed algebras II

13:30 -- 14:20  Pavle Pandzic (University of Zagreb)
Dirac cohomology of (g,K)-modules

14:40 -- 15:30  Akihito Wachi (Hokkaido Institute of Technology)
Central elements in the universal enveloping algebras U(g) of the
orthogonal Lie algebras and invariants in the tensor products of U(g)
and irreducible representations.

16:00 -- 16:50  Hiro-Fumi Yamada (Okayama Univeristy)  
Rectangular Schur functions and the basic representations of $A^{1}_1$

17:10 -- 18:00  Toshiyuki Kobayashi (RIMS, Kyoto University)
On complex geometry and multiplicity-free representations

 --- February 24, 2004 (Tuesday)  ---------------------------------------------------

 9:30 -- 10:30  Eric Sommers (University of Massachusetts at Amherst)
"Ideals in the nilradical of a Borel subalgebra and nilpotent orbits"; 
Talk 3:  "Duality for nilpotent orbits"

11:00 -- 12:00  Laurent Manivel (Institut Fourier, Universit\'{e} de Grenoble)
Exceptional groups and normed algebras III


 ***********************************************************************************************

Program

                                       ||  13:00--13:50  14:10--15:00  15:30--16:20  16:40--17:30
2/21 (Sat)  *            *             ||  Ochiai        Matsuki       Sekiguchi     Lee

            9:30--10:30  11:00--12:00  ||  13:30--14:20  14:40--15:30  16:00--16:50  17:10--18:00
2/22 (Sun)  Sommers1     Manivel1      ||  Kaji          Oda           Kamita        Taniguchi
2/23 (Mon)  Sommers2     Manivel2      ||  Pandzic       Wachi         Yamada        Kobayashi
2/24 (Tue)  Sommers3     Manivel3      ||  *             *             *

We are planning a dinner party on February 22 (Sunday) at 18:40.  
The restaurant will be announced before long.

 ***********************************************************************************************

Travel information in Nagoya:
http://www.math.nagoya-u.ac.jp/~ochiai/travel-info.html