Results 41 to 50 of about 5,767,953 (360)

Random Fixed Point of Three-Dimensional Random-Bond Ising Models

open access: yes, 2000
The fixed-point structure of three-dimensional bond-disordered Ising models is investigated using the numerical domain-wall renormalization-group method.
Ballesteros H. G.   +22 more
core   +1 more source

The convergence of the Euler's method

open access: yesJournal of Numerical Analysis and Approximation Theory, 2010
In this article we study the Euler's iterative method. For this method we give a global theorem of convergence. In the last section of the paper we give a numerical example which illustrates the result exposed in this work.
Raluca Anamaria Sălăjan (Pomian)
doaj   +2 more sources

A Fixed Point Approach to the Stability of a Mean Value Type Functional Equation

open access: yesMathematics, 2017
We prove the generalized Hyers–Ulam stability of a mean value type functional equation f ( x ) − g ( y ) = ( x − y ) h ( x + y ) by applying a method originated from fixed point theory.
Soon-Mo Jung, Yang-Hi Lee
doaj   +1 more source

An Inertial Method for Split Common Fixed Point Problems in Hilbert Spaces

open access: yesJournal of Mathematics, 2021
In this paper, we consider the split common fixed point problem in Hilbert spaces. By using the inertial technique, we propose a new algorithm for solving the problem. Under some mild conditions, we establish two weak convergence theorems of the proposed
Haixia Zhang, Huanhuan Cui
doaj   +1 more source

Stability of additivity and fixed point methods [PDF]

open access: yesFixed Point Theory and Applications, 2013
We show that the fixed point methods allow to investigate Ulam’s type stability of additivity quite efficiently and precisely. Using them we generalize, extend and complement some earlier classical results concerning the stability of the additive Cauchy equation.
openaire   +2 more sources

Fixed Point Method to Analyze Differences between Hipparcos and ICRF2

open access: yesAbstract and Applied Analysis, 2014
From 1998, the International Astronomical Union (IAU) adopted a new Celestial Reference System: the International Celestial Reference System (ICRS). The first optical materialization was the Hipparcos catalogue, defining the Hipparcos Celestial Reference
María José Martínez Usó   +2 more
doaj   +1 more source

Ulam stability of hom-ders in fuzzy Banach algebras

open access: yesAIMS Mathematics, 2022
This paper aims to investigate a new type of derivations in a fuzzy Banach algebra. Moreover, by using the fixed point method, we obtain some stability results of the hom-der in fuzzy Banach algebras associated with the functional equation $ f(x ...
Araya Kheawborisut   +3 more
doaj   +1 more source

Transfinite methods in metric fixed‐point theory [PDF]

open access: yesAbstract and Applied Analysis, 2003
This is a brief survey of the use of transfinite induction in metric fixed‐point theory. Among the results discussed in some detail is the author′s 1989 result on directionally nonexpansive mappings (which is somewhat sharpened), a result of Kulesza and Lim giving conditions when countable compactness implies compactness, a recent inwardness result for
openaire   +3 more sources

Interplay of universality classes in a three-dimensional Yukawa model

open access: yes, 1995
We investigate numerically on the lattice the interplay of universality classes of the three-dimensional Yukawa model with U(1) chiral symmetry, using the Binder method of finite size scaling.
Focht, E., Jersak, J., Paul, J.
core   +1 more source

Ulam’s Type Stability and Fixed Points Methods [PDF]

open access: yesJournal of Function Spaces, 2014
1 Department of Mathematics, Pedagogical University, Podchorązych 2, 30-084 Krakow, Poland 2Department of Mathematics, Politehnica University of Timisoara, Piaţa Victoriei No. 2, 300006 Timisoara, Romania 3 Faculty of Applied Mathematics, AGH University of Science and Technology, Mickiewicza 30, 30-059 Krakow, Poland 4 Faculty of Management, University
Janusz Brzdęk   +5 more
openaire   +3 more sources

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