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math.OC2018★ 2 cited
Applying FISTA to optimization problems (with or) without minimizers
Heinz H. Bauschke, Minh N. Bui, Xianfu Wang
Beck and Teboulle's FISTA method for finding a minimizer of the sum of two convex functions, one of which has a Lipschitz continuous gradient whereas the other may be nonsmooth, is…
math.OC2018
On sums and convex combinations of projectors onto convex sets
Heinz H. Bauschke, Minh N. Bui, Xianfu Wang
The projector onto the Minkowski sum of closed convex sets is generally not equal to the sum of individual projectors. In this work, we provide a complete answer to the question of…