In this paper, we consider the problem of finding approximate inverses of a given matrix. We give an explicit solution to the rank-constrained regularized inverse approximation problem and obtain an inverse-regularized EckartYoung-like theorem.
Julianne Chung, Matthias Chung, Dianne P O'Leary. (2015). Optimal regularized low rank inverse approximation. Linear Algebra and its Applications, (468)
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