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Strong Nonnegativity, Sums of Squares, and Convex Hulls of Real Varieties

Student-Run Discrete Math Seminar

Speaker: Mohamed Omar, UC Davis
Location: 2112 MSB
Start time: Fri, Dec 3 2010, 11:00AM

Inspired by scheme theory, we discuss a strong notion of nonnegativity on real varieties that gives deeper insight into the structure of a hierarchy of projected semidefinite relaxations to the convex hull of a given real variety. This is joint work with Brian Osserman.