This paper concerns an infeasible kernel-based interior-point algorithm (IPA) for monotone linear complementarity problems (LCPs). Our algorithm differs from other existing algorithms in the literature since its feasibility step is induced by a finite hyperbolic barrier term. The convergence analysis shows that the proposed algorithm is well-defined and its complexity bound coincides with the currently best-known iteration bound of infeasible interior-point methods for monotone LCPs. Moreover, the practical performance of our algorithm is validated by some extensive numerical tests. To the best of our knowledge, this is the first full-Newton step infeasible IPA based on a hyperbolic kernel function for solving monotone LCPs.
polynomial complexity, infeasible interior-point method, kernel function, linear complementarity problems
90C51, 90C33