Results 31 to 40 of about 1,521,259 (326)

Remark on the system of nonlinear variational inclusions

open access: yesArab Journal of Mathematical Sciences, 2014
We prove the existence of a solution to the system of nonlinear variational inclusions problem. We provide examples of applications related to a coupled best approximations theorem for multivalued mappings and a multivalued coupled coincidence point.
Zoran D. Mitrović
doaj   +1 more source

Fixed points and coupled fixed points in partially ordered ν-generalized metric spaces

open access: yesApplied General Topology, 2018
<p>New fixed point and coupled fixed point theorems in partially ordered ν-generalized metric spaces are presented. Since the product of two ν-generalized metric spaces is not in general a ν-generalized metric space, a different approach is needed than in the case of standard metric spaces.</p>
Mortaza Abtahi   +2 more
openaire   +5 more sources

Some Coupled Fixed Point Theorems in Cone Metric Spaces

open access: yesFixed Point Theory and Applications, 2009
We prove some coupled fixed point theorems for mappings satisfying different contractive conditions on complete cone metric spaces.
F. Sabetghadam   +2 more
doaj   +2 more sources

Coincidence point theorems for $\varphi$-$\psi$-contraction mappings in metric spaces involving a graph

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2016
Some new coupled coincidence and coupled common fixed point theorems for $\varphi$-$\psi$-contraction mappings are established. We have also an application to some integral system to support the results.
E. Yolacan, H. Kiziltunc, M. Kir
doaj   +1 more source

Coupled fixed point‎, ‎$F$-invariant set and fixed point of $N$-order

open access: yesAnnals of Functional Analysis, 2010
‎In this paper‎, ‎we establish some new coupled fixed point theorems in complete metric spaces‎, ‎using a new concept of $F$-invariant set‎. ‎We introduce the notion of fixed point of $N$-order as natural extension of that of coupled fixed point‎. ‎As applications‎, ‎we discuss and adapt the presented results to the setting of partially ordered cone ...
Samet, B, VETRO, Calogero
openaire   +3 more sources

Conformal Chiral Dynamics [PDF]

open access: yes, 2009
We investigate the chiral dynamics of gauge theories developing an infrared stable fixed point. We determine the dependence of the bilinear fermion condensate on the underlying fermion mass and its anomalous dimension.
A. Hietanen, Francesco Sannino
core   +2 more sources

Quantum entanglement and fixed-point bifurcations [PDF]

open access: yes, 2005
How does the classical phase space structure for a composite system relate to the entanglement characteristics of the corresponding quantum system? We demonstrate how the entanglement in nonlinear bipartite systems can be associated with a fixed point ...
Hines, Andrew P.   +2 more
core   +2 more sources

Coupled coincidence point and common coupled fixed point results in cone b-metric spaces [PDF]

open access: yesFixed Point Theory and Applications, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Fadail, Zaid, Ahmad, Abd
openaire   +1 more source

Fixed point results of $(\phi,\psi)$-weak contractions in ordered $b$-metric spaces

open access: yesCubo, 2022
The purpose of this paper is to prove some results on fixed point, coincidence point, coupled coincidence point and coupled common fixed point for the mappings satisfying generalized $(\phi, \psi)$-contraction conditions in complete partially ordered ...
N. Seshagiri Rao, K. Kalyani
doaj   +1 more source

A scenario for the c>1 barrier in non-critical bosonic strings [PDF]

open access: yes, 1996
The c1 matrix models are analyzed within large N renormalization group, taking into account touching (or branching) interactions. The c0 is naturally associated with an unstable fixed point, separating the Liouville phase (gamma1.
Alvarez-Gaumd   +65 more
core   +2 more sources

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