TY  - JOUR
AU  - Shrawan Kumar
TI  - The nil Hecke ring and singularity of Schubert varieties.
JO  - Inventiones mathematicae
PY  - 1996
SP  - 471
EP  - 506
VL  - 123
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM_1996__123_3_144357/
ID  - IM_1996__123_3_144357
ER  -