Alternating Projection-Proximal Methods for Convex Programming and Variational Inequalities

  • Authors:
  • Paul Tseng

  • Affiliations:
  • -

  • Venue:
  • SIAM Journal on Optimization
  • Year:
  • 1997

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Abstract

We consider a mixed problem composed in part of finding a zero of a maximal monotone operator and in part of solving a monotone variational inequality problem. We propose a solution method for this problem that alternates between a proximal step (for the maximal monotone operator part) and a projection-type step (for the monotone variational inequality part) and analyze its convergence and rate of convergence. This method extends a decomposition method of Chen and Teboulle [Math. Programming, 64 (1994), pp. 81--101] for convex programming and yields, as a by-product, new decomposition methods.