A proximal point method for nonsmooth convex optimization problems in Banach spaces

Y. I. Alber, R. S. Burachik and A. N. Iusem

Abstract and Applied Analysis, 1997, vol. 2, 1-24

Abstract:

In this paper we show the weak convergence and stability of the proximal point method when applied to the constrained convex optimization problem in uniformly convex and uniformly smooth Banach spaces. In addition, we establish a nonasymptotic estimate of convergence rate of the sequence of functional values for the unconstrained case. This estimate depends on a geometric characteristic of the dual Banach space, namely its modulus of convexity. We apply a new technique which includes Banach space geometry, estimates of duality mappings, nonstandard Lyapunov functionals and generalized projection operators in Banach spaces.

Date: 1997
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlaaa:614871

DOI: 10.1155/S1085337597000298

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