Results 81 to 90 of about 5,964,053 (112)

Measures of noncompactness in Lipschitz Banach algebra and application to quadratic fractional integral equation

open access: yesFixed Point Theory and Algorithms for Sciences and Engineering
In this paper, we introduce the Banach algebra on unbounded interval that satisfies the lipschitz condition, next we define measures of noncompactness in this space.
Hojjatollah Amiri Kayvanloo   +2 more
doaj   +1 more source

Some generalizations of Darbo's fixed point theorem under weak topology features with application to a Volterra-type integral equation

open access: yesApplied General Topology
In this paper, we provide some generalizations of Darbo's fixed point theorem for larger classes of contraction. Our results are investigated under the weak topology of a Banach space using the measure of weak noncompactness. The results presented in the
Mohamed Khazou, Abdelmjid Khchine
doaj   +1 more source

Controllability of Fractional Integro-Differential Equations with Delays and Singular Kernels in Fréchet Spaces

open access: yesMathematics
This paper is devoted to the investigation of existence and approximate controllability results for a class of fractional integro-differential equations formulated in Fréchet spaces.
Fatima Mesri   +2 more
doaj   +1 more source

A fixed point theorem for a multivalued non-self mapping [PDF]

open access: yes, 1996
summary:We prove a fixed point theorem for a multivalued non-self mapping in a metrically convex complete metric space. This result generalizes Theorem 1 of Itoh [2]
Rhoades, B. E.
core  

Existence of pseudo-equilibria in a financial economy [PDF]

open access: yes
This paper proves the existence of a pseudo-equilibrium in a financial economy with incomplete markets in which the agents may have nonordered preferences.
Bernard Cornet, Philippe Bich
core   +2 more sources

Fixed Point and Common Fixed Point Theorem for Expansive Mapping in Fuzzy Metric Space [PDF]

open access: yes, 2017
In this paper, we have endeavored to establish fixed point and common fixed theorem forexpansive mapping in fuzzy metric space.Keywords: Fixed Point, Fixed Point Theorem, Metric Space, Fuzzy Metric Space, ExpansiveMappings.AMS Subject Classification ...
Tiwari, Pankaj
core  

Fixed point theory for cyclic (ϕ - ψ)-contractions

open access: yes, 2011
In this article, the concept of cyclic (φ - ψ)-contraction and a fixed point theorem for this type of mappings in the context of complete metric spaces have been presented.
Sadarangani, Kishin   +3 more
core   +1 more source

Fixed points for singlevalued operators with respect to tau-distance [PDF]

open access: yes
In this paper we first recall the concept of tau-distance on a metric space. Then, we prove a fixed point theorem for singlevalued operators in terms of a tau-distance.fixed point, tau-distance, singlevalued ...
Guran, Liliana
core  

Existence Results for Some Nonlinear Functional-Integral Equations in Banach Algebra with Applications

open access: yesInternational Journal of Analysis and Applications, 2016
In the present manuscript, we prove some results concerning the existence of solutions for some nonlinear functional-integral equations which contains various integral and functional equations that considered in nonlinear analysis and its applications ...
Lakshmi Narayan Mishra   +2 more
doaj  

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