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比利时vs摩洛哥足彩 ,
university of california san diego

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math 269 - combinatorics seminar

maria monks gillespie

uc davis

what do schubert curves, jeu de taquin, and k-theory have in common?

abstract:

schubert curves are the spaces of solutions to certain one-dimensional schubert problems involving flags osculating the rational normal curve. the real locus of a schubert curve is known to be a natural covering space of $rp^1$, so its real geometry is fully characterized by the monodromy of the cover. it is also possible, using k-theoretic schubert calculus, to relate the real locus to the overall (complex) riemann surface. we present a local algorithm for computing the monodromy operator in terms of jeu de taquin-like operations on certain skew young tableaux, and use it to provide purely combinatorial proofs of some of the connections to k-theory. we will also explore partial progress in this direction in the type c setting of the orthogonal grassmannian. this is joint work with jake levinson.

host: brendon rhoades

january 26, 2017

2:00 pm

ap&m 6402

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