AN ITERATIVE METHOD FOR SOLVING A SPLIT VARIATIONAL INEQUALITY

Authors

  • Pham Thanh Hiếu Thai Nguyen University of Agriculture and Forestry
  • Pham Thi Thom School of Applied Mathematics and Informatics, Hanoi University of Science and Technology, Hanoi

DOI:

https://doi.org/10.51453/2354-1431/2020/563

Keywords:

split feasibility problem, split variational inequality, pseudomonotone mapping, metric projection, subgradient extragradient

Abstract

In this paper, we introduce two different interative methods for finding a solution of a split pseudomonotone variational inequality and a split feasibility problem in Hilbert spaces. The proposed algorithm is generated based on the subgradient extragradient method which requires only two projections at each iteration step and the second projection is conducted onto the half-space containing the constrained set. The strong convergence is proven with some mild conditions imposed on the operators as well as the parameters. A numerical result is provided at the end of the paper with the use of Python for the convergence illustration purpose of the studied method.

Downloads

Download data is not yet available.

References

[1] Censor, Y., Gibali, A., Reich, S., Algorithms for the split variational inequality problem, Number. Algo., vol.59, pp. 301-323, 2012.

[2] Censor, Y., Bortfeld, T. , Martin, B. , Trofimov, B., A unified approach for inversion problems in intensity-modulated radiation therapy, Phys. Med. Biol., vol. 51, pp. 2353–2365, 2006.

[3] Censor, Y., Segal, A., Trofimov, A., Iterative projection methods in biomedical inverse problems in: Y. Censor, M. Jiang, A.K. Louis (eds), Mathematical Methods in Biomedical Imaging and IntensityModulated Therapy, IMRT, Edizioni della Norale, pp. 65-96, Pisa, 2008.

[4] Censor,Y.,Elfving, T., Kopf, N., Bortfeld,T., The multiple-sets split feasibility problem and its application, Inverse Problems, vol.21, pp. 2071–2084, 2005.

[5] Facchinei, F.,Pang, J.S., Finite-Dimensional Variational Inequalities and Complementary Problems, Springer. New York, 2003.

[6] Korpelevich, G.M., The extragradient method for finding saddle points and other problems, Ekonomika i Matematcheskie Metody, vol. 12, pp. 747-756, 1976.

[7] Censor, Y., Gibali, A., Reich, S., Subgradient extra gradient method for solving variational inequalities in Hilbert spaces, J. Optim. Theory Appl., vol. 148, no. 2, pp. 318-335, 2011.

[8] Anh, P.K., Anh, T.V., Muu, L.D., On bilevel split pseudomonotone variational inequality problems with applications, Acta Mathematica Vietnamica, vol. 42, no. 3,DOI 10.1007/s40306-016-0178-8, 2017.

[9] Xu, H.K., Iterative algorithms for nonlinear operators, J. London Math. Soc., vol. 66, pp. 240-256, 2002.

[10] Mainge, P.E., ´ A hybrid extragradient-viscosity method for monotone operators and fixed point problems, SIAM J. Control Optim., vol. 47, pp. 1499-1515, 2008.

Downloads

Published

2022-04-12

How to Cite

Pham Thanh, H. T., & Pham Thi, T. (2022). AN ITERATIVE METHOD FOR SOLVING A SPLIT VARIATIONAL INEQUALITY . SCIENTIFIC JOURNAL OF TAN TRAO UNIVERSITY, 7(24). https://doi.org/10.51453/2354-1431/2020/563

Issue

Section

Natural Science and Technology