Numerical verification of approximate solutions for variational inequalities
  Revised:January 02, 2004
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DOI:10.7511/jslx20061008
KeyWord:variational inequality  fixed point iteration  iterative solution set  fixed point theorem  numerical verification
HU Shu-juan  WANG Xi-ying  DING Fang-yun
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Abstract:
      In this paper,a numerical method to verify the existence of solutions for variational inequalities is presented.This method is based on the work of reference([1]).By using the Riesz present theory in Hilbert space,we first transform the iterative procedure of variational inequalities into a fixed point form.Then,using the Schauder fixed point theory,we construct a numerical verification method with high efficiency that through numerical computation generates a bounded,closed,convex set in which the approximate solution is included.Finally,a numerical example for nonlinear Helmholtz equation is presented.