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Certificate-Coupled DCA for the Trust-Region Subproblem: Early Structural Escape and Progressive Global Certification
We study the nonconvex trust-region subproblem by a certificate-coupled difference-of-convex algorithm that incorporates spectral information before exact first-order stationarity is attained. The method maintains a persistent randomized Krylov subspace together with the DCA iterates. Near stationar
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