Video Lectures

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Consider a function on Rn that can be written as a sum of functions f=f1 + f2 + ... + fm, for m greater than n.

The question of approximating f by a reweighted sum using only a small number of summands has many applications in CS theory, mathematical...

Results concerning rigidity of Lagrangian submanifolds lie at the heart of symplectic topology, and have been intensively studied since the 1990s. An example for this phenomenon is the concept of Lagrangian Barriers, a form of symplectic rigidity...