Active constraints, indefinite quadratic test problems, and complexity (Q911993)

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scientific article; zbMATH DE number 4143781
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Active constraints, indefinite quadratic test problems, and complexity
scientific article; zbMATH DE number 4143781

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    Active constraints, indefinite quadratic test problems, and complexity (English)
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    1991
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    The observation that at least s constraints are active when the Hessian of the Lagrangian has s negative eigenvalues at a local minimizer is used to obtain two results: (i) a class of nearly-concave quadratic minimization problem can be solved in polynomial time; (ii) a class of indefinite quadratic test problems can be constructed with a specified number of positive and negative eigenvalues and with a known global minimizer.
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    active constraints
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    complexity theory
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    negative eigenvalues
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    local minimizer
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    nearly-concave quadratic minimization
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    polynomial time
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    indefinite quadratic test problems
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    global minimizer
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