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Preprint Jul 2026

Derivative-free optimization approach for structured symmetric matrices with fixed eigenvalues

A Derivative-Free Optimization (DFO) model is developed and analyzed for solving inverse structured symmetric matrix problems for which the eigenvalues are specified. Some (zero and nonzero) entries are preassigned and cannot be changed, while others should be nonzero but their values are not given. The rest of the ent...

Carmo P. Brás, E.H.M. Krulikovski, M. Raydan · 0 citations

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