PROJECTION METHODS FOR RELAXED COCOERCIVE VARIATION INEQUALITIES IN HILBERT SPACES

  • Published : 2009.01.31

Abstract

In this paper, we introduce and consider a new system of relaxed cocoercive variational inequalities involving three different operators and the concept of projective nonexpansive mapping. Base on the projection technique, we suggest two kinds of new iterative methods for the approximate solvability of this system. The results presented in this paper extend and improve the main results of [S.S. Chang, H.W.J. Lee, C.K. Chan, Generalized system for relaxed co coercive variational inequalities in Hilbert spaces, Appl. Math. Lett. 20 (2007) 329-334] and [Z. Huang, M. Aslam Noor, An explicit projection method for a system of nonlinear variational inequalities with different ($\gamma,r$)-cocoercive mappings, Appl. Math. Comput. (2007), doi:10.1016/j.amc.2007.01.032].

Keywords

References

  1. G. Stampacchia, Formes bilinearies coercivities sur les ensembles convexes, C.R. Acad.Sci. Paris 258 (1964) 4413-4416.
  2. J. Lions, G. Stampacchia, Variational inequalities, Commun, Pure Appl. Math. 20 (1967) 493-512.
  3. D. Gabay, Applications of the Method of Multipliers Variational Inequalities, Augmented Lagrangian Methods, Edited by M. Fortin and R. Glowinski, North-Holland, Amsterdam, Holland, 1983, pp. 299-331.
  4. R. Verma, Generalized system for relaxed cocoercive variational inequalities and its projection methods, J. Optim. Theory Appl. 121 (1) (2004) 203-210. https://doi.org/10.1023/B:JOTA.0000026271.19947.05
  5. R. Verma, Generalized class of partial relaxed monotonicity and its connections, Adv. Nonlinear Var. Inequal. 7 (2) (2004) 155-164.
  6. R. Verma, General convergence analysis for two-step projection methods and applications to variational problems, Appl. Math. Lett. 18 (11) (2005) 1286-1292. https://doi.org/10.1016/j.aml.2005.02.026
  7. D. Zhu, P. Marcotte, Cocoercivity and its role in the convergence of iterative schemes for solving variational inequalities, SIAM J. Optim. 6 (1996) 714-726. https://doi.org/10.1137/S1052623494250415
  8. S. Chang, H. Lee, C. Chan, Generalized system for relaxed cocoercive variational inequalities in Hilbert spaces, Appl. Math. Lett. 20 (2007) 329-334 https://doi.org/10.1016/j.aml.2006.04.017
  9. Z. Huang, M. Aslam Noor, An explicit projection method for a system of nonlinear variational inequalities with different $\gamma,\tau-$)cocoercive mappings, Appl. Math. Comput. (2007), doi:10.1016/j.amc.2007.01.032