KKT conditions - Equality constraints












1














I have an equality constraints as



$qquad qquad min_x f(x) \ qquad qquad s.t. quad Ax leq b \qquad qquad qquad x = h(x)$.



The KKT conditions of the minimization without the equality constraints is



$qquad qquad nabla f(x) + A^T u = 0, Ax < b \ qquad qquad u geq 0 quad &quad u^TAx = 0$.



Can I replace $x = H(x)$ in the above KKT conditions, and assume that the equality constraints are also satisfied?










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  • 2




    After replacing $x=h(x)$ you still have $x$ left in the objective that must satisfy the constraint, so no.
    – A.Γ.
    2 days ago


















1














I have an equality constraints as



$qquad qquad min_x f(x) \ qquad qquad s.t. quad Ax leq b \qquad qquad qquad x = h(x)$.



The KKT conditions of the minimization without the equality constraints is



$qquad qquad nabla f(x) + A^T u = 0, Ax < b \ qquad qquad u geq 0 quad &quad u^TAx = 0$.



Can I replace $x = H(x)$ in the above KKT conditions, and assume that the equality constraints are also satisfied?










share|cite|improve this question


















  • 2




    After replacing $x=h(x)$ you still have $x$ left in the objective that must satisfy the constraint, so no.
    – A.Γ.
    2 days ago
















1












1








1







I have an equality constraints as



$qquad qquad min_x f(x) \ qquad qquad s.t. quad Ax leq b \qquad qquad qquad x = h(x)$.



The KKT conditions of the minimization without the equality constraints is



$qquad qquad nabla f(x) + A^T u = 0, Ax < b \ qquad qquad u geq 0 quad &quad u^TAx = 0$.



Can I replace $x = H(x)$ in the above KKT conditions, and assume that the equality constraints are also satisfied?










share|cite|improve this question













I have an equality constraints as



$qquad qquad min_x f(x) \ qquad qquad s.t. quad Ax leq b \qquad qquad qquad x = h(x)$.



The KKT conditions of the minimization without the equality constraints is



$qquad qquad nabla f(x) + A^T u = 0, Ax < b \ qquad qquad u geq 0 quad &quad u^TAx = 0$.



Can I replace $x = H(x)$ in the above KKT conditions, and assume that the equality constraints are also satisfied?







convex-optimization nonlinear-optimization karush-kuhn-tucker






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asked 2 days ago









Majid Mohammadi

275




275








  • 2




    After replacing $x=h(x)$ you still have $x$ left in the objective that must satisfy the constraint, so no.
    – A.Γ.
    2 days ago
















  • 2




    After replacing $x=h(x)$ you still have $x$ left in the objective that must satisfy the constraint, so no.
    – A.Γ.
    2 days ago










2




2




After replacing $x=h(x)$ you still have $x$ left in the objective that must satisfy the constraint, so no.
– A.Γ.
2 days ago






After replacing $x=h(x)$ you still have $x$ left in the objective that must satisfy the constraint, so no.
– A.Γ.
2 days ago












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