Optimal Simplex Tableau Characterization of Unique and Bounded Solutions of Linear Programs.
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WISCONSIN UNIV-MADISON MATHEMATICS RESEARCH CENTER
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Uniqueness and boundedness of solutions of linear programs are characterized in terms of an optimal simplex tableau. Let M denote the submatrix in an optimal simplex tableau with columns corresponding to degenerate optimal dual basic variables. A primal optimal solution is unique if and only if there exists a nonvacuous nonnegative linear combination of the rows of M corresponding to degenerate optimal primal basic variables which is positive. The set of primal optimal solutions is bounded if and only if there exists a nonnegative linear combination of the rows of M which is positive. When M is empty the primal optimal solution is unique. Author
- Theoretical Mathematics