@Article{Kheirfam2010, author = "Kheirfam, Behrouz", title = "Postoptimal analysis in the coefficients matrix of piecewise linear fractional programming problems with non-degenerate optimal solution", journal = "Opuscula Math.", year = "2010", volume = "30", number = "3", pages = "281--294", doi = "http://dx.doi.org/10.7494/OpMath.2010.30.3.281", url = "http://dx.doi.org/10.7494/OpMath.2010.30.3.281", abstract = "In this paper, we discuss how changes in the coefficients matrix of piecewise linear fractional programming problems affect the non-degenerate optimal solution. We consider separate cases when changes occur in the coefficients of the basic and non-basic variables and derive bounds for each perturbation, while the optimal solution is invariant. We explain that this analysis is a generalization of the sensitivity analysis for \(LP\), \(LFP\) and \(PLP\). Finally, the results are described by some numerical examples.", keywords = "piecewise linear fractional programming, degeneracy, optimal basis, fractional programming, piecewise linear programming, sensitivity analysis", issn = "1232-9274" }