Results 91 to 100 of about 4,974,492 (203)

Constructions of Uniformly Convex Functions

open access: yes, 2012
We give precise conditions under which the composition of a norm with a convex function yields a uniformly convex function on a Banach space. Various applications are given to functions of power type.
Jonathan M. Borwein, Jon Vanderwerff
core   +1 more source

A New Iterative Scheme of Modified Mann Iteration in Banach Space

open access: yesAbstract and Applied Analysis, 2014
We introduce the modified iterations of Mann's type for nonexpansive mappings and asymptotically nonexpansive mappings to have the strong convergence in a uniformly convex Banach space.
Jinzuo Chen, Dingping Wu, Caifen Zhang
doaj   +1 more source

A note on best approximation and invertibility of operators on uniformly convex Banach spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1991
It is shown that if X is a uniformly convex Banach space and S a bounded linear operator on X for which ‖I−S‖=1, then S is invertible if and only if ‖I−12S‖
James R. Holub
doaj   +1 more source

Convergence of Panigrahy iteration process for Suzuki generalized nonexpansive mapping in uniformly convex Banach space [PDF]

open access: yesJournal of Hyperstructures
In this paper, we establish strong and weak convergence theorems for Suzuki's generalized nonexpansive mapping in uniformly convex Banach spaces using the iterative scheme introduced by Panigrahy et al [9]. Next, we see an example of Suzuki's generalized
Omprash Sahu, Amitabh Banerjee
doaj   +1 more source

The alternating algorithm in a uniformly convex and uniformly smooth Banach space

open access: yesJournal of Mathematical Analysis and Applications, 2015
Let \(X\) be a uniformly convex Banach space and \(C\) a closed convex subset of \(X\). It is very well known that there exists a unique best approximation from \(C\), denoted by \(P_{C}(x),\) of every vector \(x\in X\). If you assume that \(M_{k}\), \(k=1, 2, \dots, r,\) are closed linear subspaces of a uniformly convex and uniformly smooth Banach ...
openaire   +2 more sources

Convergence of subdifferentials and normal cones in locally uniformly convex Banach space

open access: yes, 2014
International audienceIn this paper we study the behaviour of normal cones and subdifferentials with respect to two types of convergence of sets and functions: Mosco and Attouch–Wets convergences.
Zakaryan, T., Thibault, L.
core   +1 more source

Convergence Theorems for Infinite Family of Multivalued Quasi-Nonexpansive Mappings in Uniformly Convex Banach Spaces

open access: yesAbstract and Applied Analysis, 2012
We introduce an iterative method for finding a common fixed point of a countable family of multivalued quasi-nonexpansive mapping {Ti} in a uniformly convex Banach space. We prove that under certain control conditions, the iterative sequence generated by
Aunyarat Bunyawat, Suthep Suantai
doaj   +1 more source

k-β and k-nearly uniformly convex Banach spaces

open access: yesJournal of Mathematical Analysis and Applications, 1991
Some new geometrical uniform properties of a Banach space are introduced. The exact relationships with the old ones (such as uniform rotundity, near uniform convexity, etc.) are also discussed.
openaire   +1 more source

Martingale representation in uniformly convex spaces

open access: yes, 1979
In this paper we define the concept of a martingale in a uniformly convex Banach space and show that each bounded martingale is convergent and can be represented as a sequence of nearest point projections onto closed convex sets of one element of the ...
L. Rogge, D. Landers
core   +1 more source

Convergence of Path and Approximation of Common Element of Null Spaces of Countably Infinite Family of m-Accretive Mappings in Uniformly Convex Banach Spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2009
We prove path convergence theorems and introduce a new iterative sequence for a countably infinite family of m-accretive mappings and prove strong convergence of the sequence to a common zero of these operators in uniformly convex real Banach space ...
E. U. Ofoedu, Y. Shehu
doaj   +1 more source

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