Optimal solutions with a bounded number of non-zero variables












0














Consider the linear program in equational form:



begin{align}
text{maximize} && c^T x\
text{subject to} && A x = b , x geq 0
end{align}

It is known that, if there are $m$ equational constraints (i.e. the matrix $A$ has $m$ rows), and the problem has an optimal solution, then it has an optimal solution in which at most $m$ variables are non-zero; it is called an optimal basic feasible solution.



MY QUESTION IS: is there a larger family of optimization problems (not necessarily linear) with the same property?



I.e., is there a family of optimization problems, that always have a solution in which the number of non-zero variables is bounded by some function of the number of constraints?










share|cite|improve this question






















  • I don't think so.
    – LinAlg
    yesterday
















0














Consider the linear program in equational form:



begin{align}
text{maximize} && c^T x\
text{subject to} && A x = b , x geq 0
end{align}

It is known that, if there are $m$ equational constraints (i.e. the matrix $A$ has $m$ rows), and the problem has an optimal solution, then it has an optimal solution in which at most $m$ variables are non-zero; it is called an optimal basic feasible solution.



MY QUESTION IS: is there a larger family of optimization problems (not necessarily linear) with the same property?



I.e., is there a family of optimization problems, that always have a solution in which the number of non-zero variables is bounded by some function of the number of constraints?










share|cite|improve this question






















  • I don't think so.
    – LinAlg
    yesterday














0












0








0







Consider the linear program in equational form:



begin{align}
text{maximize} && c^T x\
text{subject to} && A x = b , x geq 0
end{align}

It is known that, if there are $m$ equational constraints (i.e. the matrix $A$ has $m$ rows), and the problem has an optimal solution, then it has an optimal solution in which at most $m$ variables are non-zero; it is called an optimal basic feasible solution.



MY QUESTION IS: is there a larger family of optimization problems (not necessarily linear) with the same property?



I.e., is there a family of optimization problems, that always have a solution in which the number of non-zero variables is bounded by some function of the number of constraints?










share|cite|improve this question













Consider the linear program in equational form:



begin{align}
text{maximize} && c^T x\
text{subject to} && A x = b , x geq 0
end{align}

It is known that, if there are $m$ equational constraints (i.e. the matrix $A$ has $m$ rows), and the problem has an optimal solution, then it has an optimal solution in which at most $m$ variables are non-zero; it is called an optimal basic feasible solution.



MY QUESTION IS: is there a larger family of optimization problems (not necessarily linear) with the same property?



I.e., is there a family of optimization problems, that always have a solution in which the number of non-zero variables is bounded by some function of the number of constraints?







optimization convex-optimization linear-programming nonlinear-optimization






share|cite|improve this question













share|cite|improve this question











share|cite|improve this question




share|cite|improve this question










asked yesterday









Erel Segal-Halevi

4,24111760




4,24111760












  • I don't think so.
    – LinAlg
    yesterday


















  • I don't think so.
    – LinAlg
    yesterday
















I don't think so.
– LinAlg
yesterday




I don't think so.
– LinAlg
yesterday










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