Finding solutions of implicit complementarity problems by isotonicity of the metric projection

M Abbas, SZ Németh - Nonlinear Analysis: Theory, Methods & Applications, 2012 - Elsevier
Isac and Németh [G. Isac and AB Németh, Projection method, isotone projection cones and
the complementarity problem, J. Math. Anal. App., 153, 258-275 (1990)] proved that solving …

How to project onto an isotone projection cone

AB Németh, SZ Németh - Linear Algebra and its Applications, 2010 - Elsevier
The solution of the complementarity problem defined by a mapping f: Rn→ Rn and a cone
K⊂ Rn consists of finding the fixed points of the operator PK∘(If), where PK is the projection …

Extended Lorentz cones and mixed complementarity problems

SZ Németh, G Zhang - Journal of Global optimization, 2015 - Springer
In this paper we extend the notion of a Lorentz cone in a Euclidean space as follows: we
divide the index set corresponding to the coordinates of points in two disjoint classes. By …

Solvability of variational inequalities on Hilbert lattices

H Nishimura, EA Ok - Mathematics of Operations Research, 2012 - pubsonline.informs.org
This paper provides a systematic solvability analysis for (generalized) variational
inequalities on separable Hilbert lattices. By contrast to a large part of the existing literature …

On the equivalence between some projected and modulus-based splitting methods for linear complementarity problems

F Mezzadri - Calcolo, 2019 - Springer
In this paper, we analyze the relationship between projected and (possibly accelerated)
modulus-based matrix splitting methods for linear complementarity problems. In particular …

Extended Lorentz cones and variational inequalities on cylinders

SZ Németh, G Zhang - Journal of optimization Theory and Applications, 2016 - Springer
Solutions of a variational inequality problem defined by a closed and convex set and a
mapping are found by imposing conditions for the monotone convergence with respect to a …

Extension procedures for lattice Lipschitz operators on Euclidean spaces

R Arnau, JM Calabuig, E Erdoğan… - Revista de la Real …, 2023 - Springer
We present a new class of Lipschitz operators on Euclidean lattices that we call lattice
Lipschitz maps, and we prove that the associated McShane and Whitney formulas provide …

[HTML][HTML] Lattice-like operations and isotone projection sets

AB Németh, SZ Németh - Linear Algebra and its Applications, 2013 - Elsevier
By using some lattice-like operations which constitute extensions of ones introduced by MS
Gowda, R. Sznajder and J. Tao for self-dual cones, a new perspective is gained on the …

Solving nonlinear complementarity problems by isotonicity of the metric projection

M Abbas, SZ Németh - Journal of Mathematical Analysis and Applications, 2012 - Elsevier
The main motivation for introducing the notion of isotone projection cones was to solve
nonlinear complementarity problems. The notion of*-isotone projection cones is introduced …

Isotonicity of the metric projection by Lorentz cone and variational inequalities

D Kong, L Liu, Y Wu - Journal of Optimization Theory and Applications, 2017 - Springer
In this paper, we first discuss the geometric properties of the Lorentz cone and the extended
Lorentz cone. The self-duality and orthogonality of the Lorentz cone are obtained in Hilbert …