Results 31 to 40 of about 856,874 (305)

Fixed point theorems for generalized weakly contractive mappings in metric spaces with applications

open access: yesFixed Point Theory and Applications, 2018
In this paper, motivated and inspired by Samet et al., we introduce the notion of generalized weakly contractive mappings in metric spaces and prove the existence and uniqueness of fixed point for such mappings, and we obtain a coupled fixed point ...
Seonghoon Cho
doaj   +1 more source

An interesting approach to the existence of coupled fixed point

open access: yesAIMS Mathematics, 2020
<abstract> <p>Configure a coupled fixed point result on a nonempty set engaging a partial order and induced with a quasi-metric in the sense of Kunzi <sup>[<xref ref-type="bibr" rid="b12">12</xref>]</sup> in the framework of $\mathcal{G}$-metric spaces.
Manuel De la Sen   +3 more
openaire   +3 more sources

Coupled fixed point theorems under new coupled implicit relation in Hilbert spaces

open access: yesDemonstratio Mathematica, 2022
The aim of this paper is to study existence and uniqueness of coupled fixed point for a family of self-mappings satisfying a new coupled implicit relation in a Hilbert space. We also prove well-posedness of a coupled fixed point problem.
Kim Kyung Soo
doaj   +1 more source

Some results on Caristi type coupled fixed point theorems

open access: yesActa Universitatis Sapientiae: Mathematica, 2022
In this work we define the concepts of the coupled orbit and coupled orbitally completeness. After then, using the method of Bollenbacher and Hicks [8], we prove some Caristi type coupled fixed point theorems in coupled orbitally complete metric spaces ...
Şahin İlker, Telci Mustafa
doaj   +1 more source

Pauli-Term-Induced Fixed Points in $d$-dimensional QED [PDF]

open access: yesEur. Phys. J. C 83 10 (2023) 955, 2022
We explore the fixed-point structure of QED-like theories upon the inclusion of a Pauli spin-field coupling. We concentrate on the fate of UV-stable fixed points recently discovered in $d=4$ spacetime dimensions upon generalizations to lower as well as higher dimensions for an arbitrary number of fermion flavors $N_\mathrm{f}$.
arxiv   +1 more source

Coupled Fixed Point Theorems under Weak Contractions

open access: yesDiscrete Dynamics in Nature and Society, 2012
Cho et al. [Comput. Math. Appl. 61(2011), 1254–1260] studied common fixed point theorems on cone metric spaces by using the concept of c-distance. In this paper, we prove some coupled fixed point theorems in ordered cone metric spaces by using the ...
Y. J. Cho   +3 more
doaj   +1 more source

Some fixed point results of generalized $$(\phi , \psi )$$ ( ϕ , ψ ) -contractive mappings in ordered b-metric spaces

open access: yesBMC Research Notes, 2020
Objectives The aim of this paper is to establish some fixed point, coincidence point and, coupled coincidence and coupled common fixed point results for generalized $$(\phi , \psi )$$ ( ϕ , ψ ) -contractive mappings in partially ordered b-metric spaces ...
Belay Mitiku   +2 more
doaj   +1 more source

Renormalization Group Evolution and Infra-red Fixed Points in Minimal Supersymmetric Standard Model with Baryon and Lepton Number Violation [PDF]

open access: yesPhys.Rev.D62:036009,2000; Erratum-ibid.D63:099901,2001, 1999
We study the renormalization group evolution and infra-red stable fixed points of the Yukawa couplings and the soft supersymmetry breaking trilinear couplings of the minimal supersymmetric standard model with baryon and lepton number (and R-parity) violation involving the heaviest generations.
arxiv   +1 more source

Nonminimal Supersymmetric Standard Model with Baryon and Lepton Number Violation [PDF]

open access: yesPhys.Rev.D64:056002,2001, 2001
We carry out a comprehensive analysis of the nonminimal supersymmetric standard model (NMSSM) with baryon and lepton number violation. We catalogue the baryon and lepton number violating dimension four and five operators of the model. We then study the renormalization group evolution and infrared stable fixed points of the Yukawa couplings and the soft
arxiv   +1 more source

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

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