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The Two Lives of the Grassmannian
April 11 at 16:00 – 17:00 CEST
Oberseminar Algebra und Geometrie
Bernd Sturmfels (MPI-MiS Leipzig)
Abstract:
The Grassmannian parametrizes linear subspaces of a real vector space.
It is both a projective variety (via Plücker coordinates) and an affine
variety (via orthogonal projections). We examine these two representations,
through the lenses of linear algebra, commutative algebra, and statistics.