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Totally Convex Functions for Fixed Points Computation and Infinite Dimensional Optimization

Name: Totally Convex Functions for Fixed Points Computation and Infinite Dimensional Optimization
Brand: Springer
SKU: 9789401057882
Price: 19356 HUF
Availability: InStock

Szerző: Alfredo N. Iusem

Nyelv:

Kötés: Puha kötésű

Kiadó: Springer

Elérhetőség: Beszállítói készleten

Küldés 5-8 napon belül

19 356 Ft

The aim of this work is to present in a unified approach a series of results concerning totally conv...

Információk a könyvről

Szerző

Alfredo N. Iusem

Nyelv

Angol

Kötés

Könyv - Puha kötésű

Kiadva

2012

oldal

205

EAN

9789401057882

ISBN

9789401057882

Enbook ID

06619107

Kiadó

Springer

Súly

366

Méretek

160 x 240 x 13

Teljes leírás

The aim of this work is to present in a unified approach a series of results concerning totally convex functions on Banach spaces and their applications to building iterative algorithms for computing common fixed points of mea surable families of operators and optimization methods in infinite dimen sional settings. The notion of totally convex function was first studied by Butnariu, Censor and Reich [31] in the context of the space lRR because of its usefulness for establishing convergence of a Bregman projection method for finding common points of infinite families of closed convex sets. In this finite dimensional environment total convexity hardly differs from strict convexity. In fact, a function with closed domain in a finite dimensional Banach space is totally convex if and only if it is strictly convex. The relevancy of total convexity as a strengthened form of strict convexity becomes apparent when the Banach space on which the function is defined is infinite dimensional. In this case, total convexity is a property stronger than strict convexity but weaker than locally uniform convexity (see Section 1.3 below). The study of totally convex functions in infinite dimensional Banach spaces was started in [33] where it was shown that they are useful tools for extrapolating properties commonly known to belong to operators satisfying demanding contractivity requirements to classes of operators which are not even mildly nonexpansive.