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math.OC2025
Twice Epi-Differentiability of Orthogonally Invariant Matrix Functions and Application
Jiahuan He, Chao Kan, Wen Song
In this paper, our focus lies on the study of the second-order variational analysis of orthogonally invariant matrix functions. It is well-known that an orthogonally invariant matr…
math.OC2024
On Solution Uniqueness and Robust Recovery for Sparse Regularization with a Gauge: from Dual Point of View
Jiahuan He, Chao Kan, Wen Song
In this paper, we focus on the exploration of solution uniqueness, sharpness, and robust recovery in sparse regularization with a gauge . Based on the criteria for the uniquenes…