Results 21 to 30 of about 12,683 (242)

A Modified Proximal Point Algorithm and Some Convergence Results

open access: yesJournal of Mathematics, 2021
In this paper, the convergence to minimizers of a convex function of a modified proximal point algorithm involving a single-valued nonexpansive mapping and a multivalued nonexpansive mapping in CAT(0) spaces is studied and a numerical example is given to
Shengquan Weng, Dingping Wu, Zengfu Chao
doaj   +1 more source

ON MULTIVALUED f-NONEXPANSIVE MAPS

open access: yesDemonstratio Mathematica, 1999
The authors prove coincidence, fixed point, and convergence theorems which extend previous results by G. L. Acedo and H.-K. Xu, W. G. Dotson, G. Jungck and S. Sessa, and E. Lami Dozo.
Latif, Abdul, Tweddle, Ian
openaire   +1 more source

Common Fixed Point Theorems for Multivalued Generalized F-Suzuki-Contraction Mappings in Complete Strong b-Metric Spaces

open access: yesJournal of Nigerian Society of Physical Sciences, 2019
This paper introduces a new version of multivalued generalized F-Suzuki-Contraction mapping and then establish some new common fixed point theorems for these new multivalued generalized F-Suzuki-Contraction Mappings incomplete strong b-Metric Spaces.
Yusuf Ibrahim
doaj   +1 more source

Three-Step Fixed Point Iteration for Generalized Multivalued Mapping in Banach Spaces

open access: yesJournal of Applied Mathematics, 2012
The convergence of three-step fixed point iterative processes for generalized multivalued nonexpansive mapping was considered in this paper. Under some different conditions, the sequences of three-step fixed point iterates strongly or weakly converge to ...
Zhanfei Zuo
doaj   +1 more source

Fixed point index computations for multivalued mapping and application to the problem of positive eigenvalues in ordered space

open access: yesApplied General Topology, 2022
In this paper, we present some results on fixed point index calculations for multivalued mappings and apply them to prove the existence of solutions to multivalued equations in ordered space, under flexible conditions for the positive eigenvalue.
Vo Viet Tri
doaj   +1 more source

Multistep-type construction of fixed point for multivalued ρ-quasi-contractive-like maps in modular function spaces [PDF]

open access: yesArab Journal of Mathematical Sciences, 2021
Purpose – In this paper, the explicit multistep, explicit multistep-SP and implicit multistep iterative sequences are introduced in the context of modular function spaces and proven to converge to the fixed point of a multivalued map T such that PρT, an ...
Hudson Akewe, Hallowed Olaoluwa
doaj   +1 more source

Recent advances in the Lefschetz fixed point theory for multivalued mappings

open access: yesResults in Nonlinear Analysis, 2021
In 1923 S. Lefschetz proved the famous fixed point theorem known as the Lefschetz fixed point theorem (comp. [5], [9], [20], [21]. The multivalued case was considered for the first time in 1946 by S. Eilenberg and D. Montgomery ([10]).
Lech Górniewicz
doaj   +1 more source

Carathéodory selections for multivalued mappings

open access: yesNonlinear Analysis: Theory, Methods & Applications, 2006
Let \((\Omega ,{\mathcal F})\) be a measurable space, \(T\) a locally compact separable metric space, and \(E\) a real separable Banach space. The following theorem is the main result of this paper: Let \(X:\Omega \times T\to 2^E\) be a Carathéodory set-valued mapping, i.e., measurable in \(\omega\) and continuous in \(t\).
Fierro, R, Martinez, C, Morales, CH
openaire   +4 more sources

Weak index pairs and the Conley index for discrete multivalued dynamical systems

open access: yes, 2015
Motivated by the problem of reconstructing dynamics from samples we revisit the Conley index theory for discrete multivalued dynamical systems. We introduce a new, less restrictive definition of the isolating neighbourhood.
Batko, Bogdan, Mrozek, Marian
core   +1 more source

An ordered framework for partial multivalued functors

open access: yes, 2015
The category Rel of sets and relations intimately ties the notions of function, partial multivalued function, and direct image under a function through the description of Rel as the Kleisli category of the covariant power set functor on Set. We present a
Chand, Alveen, Weiss, Ittay
core   +1 more source

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