Seminario di algebra e geometria
ore
17:00
presso Seminario VIII piano
Schubert varieties have been introduced in the 19th century to
solve problems in enumerative geometry. These well-known varieties are
indexed by permutations and many of their properties can be expressed
combinatorially in terms of permutations. As a further example of this
interplay between geometry and combinatorics, a solution of a long open
problem will be presented, namely the determination of the singular locus of
a Schubert variety.