Pires, MaríliaKravchenko, Viktor2018-12-072018-12-072008-100024-37951873-1856http://hdl.handle.net/10400.1/11859In this work we rewrote the linear complementarity problem in a formulation based on unknown projector operators. In particular, this formulation allows the introduction of a concept of "stability" that, in a certain way, might explain the way block pivotal algorithm performs. (c) 2008 Elsevier Inc. All rights reserved.engjournal article10.1016/j.laa.2008.05.029