Results 61 to 70 of about 834,629 (316)

An answer to a question of herings et al [PDF]

open access: yes
One answers to an open question of Herings et al. (2008), by proving that their fixed point theorem for discontinuous functions works for mappings defined on convex compact subset of $\R^n$, and not only polytopes. This fixed point theorem can be applied
Philippe Bich
core   +3 more sources

Some variants of Wardowski fixed point theorem

open access: yesAdvances in Difference Equations, 2021
The purpose of this paper is to consider some F-contraction mappings in a dualistic partial metric space and to provide sufficient related conditions for the existence of a fixed point.
Muhammad Nazam   +5 more
doaj   +1 more source

Computational Modeling of Reticular Materials: The Past, the Present, and the Future

open access: yesAdvanced Materials, EarlyView.
Reticular materials are advanced materials with applications in emerging technologies. A thorough understanding of material properties at operating conditions is critical to accelerate the deployment at an industrial scale. Herein, the status of computational modeling of reticular materials is reviewed, supplemented with topical examples highlighting ...
Wim Temmerman   +3 more
wiley   +1 more source

On a fixed point theorem of Kirk

open access: yesJournal of Mathematical Analysis and Applications, 2005
The author presents a new short and simple proof of the following theorem essentially due to \textit{W. A. Kirk} [J. Math. Anal. Appl. 277, No. 2, 645--650 (2003; Zbl 1022.47036)]. Let \((X, d)\) be a complete metric space, \(T: X\to X\) continuous map and \(\{\phi_n\}\) a sequence of continuous functions such that \(\phi_n: [0, \infty)\to [0, \infty)\)
openaire   +3 more sources

Unraveling the Complexity of the Dzyaloshinskii–Moriya Interaction in Layered Magnets: The Full Magnitude and Chirality Control

open access: yesAdvanced Materials, EarlyView.
In layered magnets, the atomistic Dzyaloshinskii–Moriya interaction (DMI) depends critically not only on the orbital occupancy of the interface layer but also on the sequence of the atomic layers. The effect can be understood by analyzing the contributions of different orbitals to DMI.
Khalil Zakeri   +3 more
wiley   +1 more source

A fixed point theorem for analytic functions

open access: yesFixed Point Theory and Applications, 2005
We prove that each analytic self-map of the open unit disk which interpolates between certain n-tuples must have a fixed point.
Valentin Matache
doaj   +2 more sources

Fixed Point Theorem for Uncommuting Mappings

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2017
   In this paper we prove a theorem about the existence and uniqueness common fixed point for two uncommenting self-mappings which defined on orbitally complete G-metric space. Where we use a general contraction condition.  
Salwa S. Abd, Alaa Abd-ullah
doaj  

A fixed point theorem for multivalued mappings

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2004
A generalization of the Leray-Schauder principle for multivalued mappings is given. Using this result, an existence theorem for an integral inclusion is obtained.
C. Avramescu
doaj   +1 more source

Aramid Nanofiber Aerogels: Versatile High Complexity Components for Multifunctional Composites

open access: yesAdvanced Materials, EarlyView.
Different forms of aramid nanofibers (ANFs) and especially aerogels from them, offer a sustainable route to high‐performance biomimetic nanocomposites. Due to the cartilage‐like architecture, ANF‐based materials enable breakthroughs in energy, electromagnetic, biomedical, and water purification technologies.
Mingqiang Wang   +9 more
wiley   +1 more source

Operator type expansion-compression fixed point theorem

open access: yesElectronic Journal of Differential Equations, 2011
This article presents an alternative to the compression and expansion fixed point theorems of functional type by using operators and functions to replace the functionals and constants that are used in functional compression and expansion fixed point ...
Douglas R. Anderson   +3 more
doaj  

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