作者: Matthew K. Tam
DOI: 10.1016/J.JMAA.2016.10.040
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摘要: Abstract This paper investigates regularity properties of two non-negative sparsity sets: sparse vectors, and low-rank positive semi-definite matrices. Novel formulae for their Mordukhovich normal cones are given used to formulate sufficient conditions non-convex notions hold. Our results provide a useful tool justifying the application projection methods certain rank constrained feasibility problems.