Malik, MadhurMohan, S R2012-01-152012-01-152006Linear and multilinear algebra,V54,P55-70http://hdl.handle.net/10263/2993enSemidefinite linear complementarity problemFaceSemidefinite complementarity conePrincipal subtransformationR propertyQ propertySemimonotonocity and copositivitySome geometrical aspects of semidefinite linear complementarity problemsArticle