Minimal Rank Completions for Overlapping Blocks

06/21/2021
by   Ethan N. Epperly, et al.
0

We consider the multi-objective optimization problem of choosing the bottom left block-entry of a block lower triangular matrix to minimize the ranks of all block sub-matrices. We provide a proof that there exists a simultaneous rank-minimizer by constructing the complete set of all minimizers.

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