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• #### Necessary and sufficient conditions for noiseless sparse recovery via convex quadratic splines ﻿

(Society for Industrial and Applied Mathematics Publications, 2019)
The problem of exact recovery of an individual sparse vector using the Basis Pursuit (BP) model is considered. A differentiable Huber loss function (a convex quadratic spline) is used to replace the $\ell_1$-norm in the ...