LANS Publications

"A Pivoting Algorithm for Linear Programming with Linear Complementarity Constraints"

H. Fang, S. Leyffer, and T. Munson

Optimization Methods Software , Optimization Community, . Also Preprint ANL/MCS-P1680-1009

Preprint Version: [pdf]

We present a pivoting algorithm for solving linear programs with linear complementarity constraints. Our method generalizes the simplex method for linear programming to deal with complementarity conditions. We develop an anticycling scheme that can verify Bouligand stationarity. We also give an optimization based technique to find an initial feasible vertex. Starting with a feasible vertex, our algorithm always finds a minimizer or an unbounded descent search direction in a finite number of pivoting steps.