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math.OC2026
Diagnostic Certificates of Data Quality and Regression Identifiability for Koopman Identification
Yue Wu
Classical persistent excitation criteria usually assess whether an input or regressor signal is sufficiently rich. In Koopman and EDMD with control (EDMDc), however, data quality i…
math.OC2025
Some Unified Theory for Variance Reduced Prox-Linear Methods
Yue Wu, Benjamin Grimmer
This work considers the nonconvex, nonsmooth problem of minimizing a composite objective of the form where the inner mapping is a smooth finite summation or expe…
math.OC2024
A Convergent ADMM Algorithm for Grain Boundary Energy Minimization
Yue Wu, Luchan Zhang, Yang Xiang
In this paper, we study a constrained minimization problem that arise from materials science to determine the dislocation (line defect) structure of grain boundaries. The problems…