Results 71 to 80 of about 58,190 (204)

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

A fixed point theorem for contraction mappings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1982
Let S be a closed subset of a Banach space E and f:S→E be a strict contraction mapping. Suppose there exists a mapping h:S→(0,1] such that (1−h(x))x+h(x)f(x)∈S for each x∈S. Then for any x0∈S, the sequence {xn} in S defined by xn+1=(1−h(xn))xn+h(xn)f(xn),
V. M. Sehgal
doaj   +1 more source

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

On a fixed point theorem Krasnoselskii-Shafer type

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2002
In this paper a variant of a fixed point theorem to Krasnoselskii-Schaefer type is proved and it is further applied to certain nonlinear integral equation of mixed type for proving the existence of the solution.
Bapurao Dhage
doaj   +1 more source

Existence Of A Unique Mild Solution To A Fractional Thermostat Model Via A Rus'S Fixed Point Theorem

open access: yes
The purpose of this paper is to study the existence of a unique solution of a nonlinear fractional boundary value problem which can be considered as the fractional version of the thermostat model.
Lopez, B., Sadarangani, K., Harjani, J.
core   +1 more source

A fixed point theorem in a Hausdorff topological vector space [PDF]

open access: yes, 1995
summary:In this paper, we will give a new fixed point theorem for lower semicontinuous multimaps in a Hausdorff topological vector ...
Won Kyu Kim, Kim, Won Kyu
core  

Fixed point theorems via Nash Equilibria [PDF]

open access: yes
In this note we show that the fixed points of a continuous function (or of an upper semi-continuous correspondence, with non-empty and convex values) can be attained as Nash Equilibria of a game with finitely many players.
Juan Pablo Torres-Martínez
core  

Brouwer's Fixed Point Theorem with Isolated Fixed Points and His Fan Theorem

open access: yesISRN Computational Mathematics, 2012
We show that Brouwer’s fixed point theorem with isolated fixed points is equivalent to Brouwer’s fan theorem.
openaire   +1 more source

On a fixed point theorem of Pathak

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1991
It is shown that the continuity of the mapping in Pathak's fixed point theorem for normed spaces is not necessary.
Brian Fisher
doaj   +1 more source

A fixed point theorem [PDF]

open access: yesProceedings of the American Mathematical Society, 1957
O'Neill, B., Straus, E. G.
openaire   +1 more source

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