Event

Michael Friedlander (UBC)

Tuesday, November 28, 2017 15:00to16:00
Burnside Hall Room 1214, 805 rue Sherbrooke Ouest, Montreal, QC, H3A 0B9, CA

CRM-McGill applied math seminars
(Joint with the DMO seminars)

Title: Polar duality in three liftings.

Abstract: Many modern applications rely on convex optimization, which offers a rich modeling paradigm as well as strong theoretical guarantees and computational advantages. Convex duality often plays a central role. I will describe the geometry behind a simple form of convex duality based on polarity of convex cones, its relationship to lifting, and show how it leads to a computationally efficient algorithm for the phase-retrieval problem in X-ray crystallography.

 

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