Results 41 to 50 of about 4,149,754 (381)

Hybrid steepest iterative algorithm for a hierarchical fixed point problem

Fixed Point Theory and Applications, 2017
The purpose of this work is to introduce and study an iterative method to approximate solutions of a hierarchical fixed point problem and a variational inequality problem involving a finite family of nonexpansive mappings on a real Hilbert space. Further,
Shamshad Husain, Nisha Singh
doaj   +1 more source

Existence, Data Dependence and Stability of Fixed Points of Multivalued Maps in Incomplete Metric Spaces

Annales Mathematicae Silesianae, 2023
In this paper we formulate a setvalued fixed point problem by combining four prevalent trends of fixed point theory. We solve the problem by showing that the set of fixed points is nonempty.
Choudhury Binayak S., Metiya Nikhilesh, Kundu Sunirmal, Khatua Debashis   +3 more
doaj   +1 more source

Decidability Results for the Boundedness Problem

, 2014
We prove decidability of the boundedness problem for monadic least fixed-point recursion based on positive monadic second-order (MSO) formulae over trees.
Blumensath, Achim, Otto, Martin, Weyer, Mark   +2 more
core   +1 more source

Exact Strongly Coupled Fixed Point in $g\varphi^4$ Theory

, 2015
We show explicitly how a strongly coupled fixed point can be constructed in scalar $g\varphi^4$ theory from the solutions to a non-linear eigenvalue problem.
Hegg, Anthony, Phillips, Philip W.
core   +1 more source

On split equality fixed-point problems

Alexandria Engineering Journal, 2023
In this present work, we study new algorithms to solve the split equality fixed-point problems for total quasi-asymptotically nonexpansive mappings in Hilbert spaces. In addition, we have established the convergence criteria for the proposed algorithms, at the end, we provided numerical results that justified our theoretical results.
Mohammed, L. B., Kılıçman, A., Saje, A.U.   +2 more
openaire   +2 more sources

A General Algorithm for the Split Common Fixed Point Problem with Its Applications to Signal Processing

Mathematics, 2019
In 2014, Cui and Wang constructed an algorithm for demicontractive operators and proved some weak convergence theorems of their proposed algorithm to show the existence of solutions for the split common fixed point problem without using the operator norm.
Wachirapong Jirakitpuwapat, Poom Kumam, Y. Cho, K. Sitthithakerngkiet   +3 more
semanticscholar   +1 more source

The plane fixed point problem

, 2008
In this paper we present proofs of basic results, including those developed so far by H. Bell, for the plane fixed point problem. Some of these results had been announced much earlier by Bell but without accessible proofs. We define the concept of the variation of a map on a simple closed curve and relate it to the index of the map on that curve: Index
Fokkink, Robbert J., Mayer, John C., Oversteegen, Lex G., Tymchatyn, E. D.   +3 more
openaire   +2 more sources

Towards an Asymptotic-Safety Scenario for Chiral Yukawa Systems

, 2009
We search for asymptotic safety in a Yukawa system with a chiral $U(N_L)_L\otimes U(1)_R$ symmetry, serving as a toy model for the standard-model Higgs sector.
A. Codello, A. Hasenfratz, B. Rosenstein, B.J. Schaefer, C. Calan de, C. Wetterich, D.F. Litim, D.F. Litim, D.F. Litim, D.J.E. Callaway, D.U. Jungnickel, F. Hofling, H. Gies, H. Gies, H. Gies, H. Gies, Holger Gies, I.H. Lee, I.H. Lee, J. Berges, J. Kuti, J. Polonyi, J. Shigemitsu, J. Smit, J.M. Pawlowski, K. Aoki, K. Gawedzki, K. Jansen, K. Jansen, K. Jansen, K.G. Wilson, L. Rosa, M. Luscher, M. Luscher, M. Reuter, M.C. Birse, Michael M. Scherer, O. Lauscher, O. Lauscher, P. Gerhold, P. Gerhold, P. Strack, R. Percacci, R. Percacci, R.E. Shrock, S. Bornholdt, S. Diehl, S. Diehl, Stefan Rechenberger, U.M. Heller, W. Souma, Z. Fodor   +51 more
core   +1 more source

Investigation of the Uniformity of Gel Shrinkage by Imaging Tracer Particles Using X‐Ray Microtomography

Advanced Engineering Materials, EarlyView., 2023
A novel method for tracking structural changes in gels using widely accessible microcomputed tomography is presented and validated for various hydro‐, alco‐, and aerogels. The core idea of the method is to track positions of micrometer‐sized tracer particles entrapped in the gel and relate them to the density of the gel network.
Anja Hajnal, Mimololorun Lucy Aiyelari, Martin Dirauf, Pavel Gurikov   +3 more
wiley   +1 more source

A New Approach for the Approximations of Solutions to a Common Fixed Point Problem in Metric Fixed Point Theory

Journal of Function Spaces, 2016
We provide sufficient conditions for the existence of a unique common fixed point for a pair of mappings T,S:X→X, where X is a nonempty set endowed with a certain metric. Moreover, a numerical algorithm is presented in order to approximate such solution.
Ishak Altun, Nassir Al Arifi, Mohamed Jleli, Aref Lashin, Bessem Samet   +4 more
doaj   +1 more source