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math.AG2026
Conormal Rank of Subvarieties of Grassmannians
Elizabeth Pratt
The cotangent space to any subvariety of a Grassmannian is naturally identified with a space of linear homomorphisms. We use this to define a new statistic on a subvariety of a Gra…
math.AG2026
Multigraded Hurwitz forms
Elizabeth Pratt, Luca Sodomaco, Bernd Sturmfels
The Hurwitz form of a projective variety characterizes linear spaces of complementary dimension which meet the variety non-transversally. We extend this notion to varieties in a pr…