Joint seminar: Combinatorics and Algebraic Geometry
Recognizing Schubert Cells
Sergey Fomin
MIT
December 4,
4:15pm
refreshments at 3:45pm
2338
ABSTRACT

How can we determine which Schubert cell a given point on
G/B is in from the vanishing pattern of its Plucker coordinates?
Different versions of this problem will be discussed,
along with the problem of defining a Schubert variety/cell
by the minimal number of equations/inequalities of the form
"Plucker coordinate vanishes/does not vanish".
This is joint work with Andrei Zelevinsky. The paper is available
from http://wwwmath.mit.edu/~fomin/papers.html

Speaker's Contact Info: fomin(atsign)math.mit.edu
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