Results 41 to 50 of about 856,874 (305)
Stability of fixed points and generalized critical behavior in multifield models [PDF]
Phys. Rev. E 90, 052129 (2014), 2014 We study models with three coupled vector fields characterized by $O(N_1)\oplus O(N_2) \oplus O(N_3)$ symmetry. Using the nonperturbative functional renormalization group, we derive $\beta$ functions for the couplings and anomalous dimensions in $d$ dimensions.
arxiv +1 more source
Fixed points and coupled fixed points in partially ordered ν-generalized metric spaces
Applied 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>
Abtahi, Mortaza +2 more
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COUPLED FIXED POINT THEOREMS WITH C-CLASS FUNCTIONS [PDF]
Facta Universitatis, Series: Mathematics and Informatics, 2018 In this paper, we introduce a new type of coupled xed point theoremwith C-class functions in partially ordered complete metric space.
Ansari, Arslan H. +3 more
openaire +2 more sources
Some Coupled Fixed Point Theorems for (ψ, φ)- contraction with Applications to Fractals [PDF]
arXiv, 2023 In this paper, we obtain coupled fixed point theorem for (\psi, \phi)-contractions under some generalized conditions on the real valued functions \psi and \phi defined on (0,\infinity). Also, we present a generalized version of coupled fixed point theorem for the same (\psi, \phi)- contractions.
arxiv
Coupled fixed point, $F$-invariant set and fixed point of $N$-order
Annals 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
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A variational principle, coupled fixed points and market equilibrium
Nonlinear Analysis: Modelling and Control, 2021 We present a possible kind of generalization of the notion of ordered pairs of cyclic maps and coupled fixed points and its application in modelling of equilibrium in oligopoly markets. We have obtained sufficient conditions for the existence and uniqueness of coupled fixed in complete metric spaces.
Stanimir Kabaivanov, Boyan Zlatanov
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Karpatsʹkì 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
Infra-red stable fixed points of Yukawa couplings in non-minimal supersymmetric standard model with R-parity violation [PDF]
Phys.Lett. B462 (1999) 294-301, 1999 We study the renormalization group evolution and the infra-red stable fixed points of the Yukawa couplings of the non-minimal supersymmetric standard model (NMSSM) with R-parity violation. Retaining only the R-parity violating couplings of higher generations, we analytically study the solutions of the renormalization group equations of all the ...
arxiv +1 more source
Some stability results for coupled fixed point iterative process in a complete metric space [PDF]
Surveys in Mathematics and its Applications, 2019 In the paper [M. O. Olatinwo, Stability of coupled fixed point iterations and the continuous dependence of coupled fixed points, Communications on Applied Nonlinear Analysis 19 (2012), 71-83], the author has extended the notion of stability of fixed ...
M. O. Olatinwo, K. R. Tijani
doaj
Coupled fixed point theorems for asymptotically nonexpansive mappings [PDF]
Fixed Point Theory and Applications, 2013 We introduce the theory of asymptotical nonexpansiveness of mappings defined in the algebraic product and with values in the space E.
Shih-sen Chang +2 more
openaire +1 more source