نتایج جستجو برای: random xed point

تعداد نتایج: 790924  

Journal: :نظریه تقریب و کاربرد های آن 0
e. firouz department of mathematics, islamic azad university, abhar branch, abhar, iran. s. j. hosseini ghoncheh department of mathematics, takestan branch, islamic azad university, takestan, iran.

boujari [5] proved a fi xed point theorem with an old version of the integraltype contraction , his proof is incorrect. in this paper, a new generalizationof integral type contraction is introduced. moreover, a fixed point theorem isobtained.

Journal: :نظریه تقریب و کاربرد های آن 0
لیلا قلی زاده دانشگاه آزاد واحد علوم و تحقیقات تهران

we consider the concept of ω-distance on a complete partially ordered g-metric space and prove some common fi xed point theorems.

Journal: : 2022

"This paper deals with some existence results for a class of implicit fractional q-difference equations. The are based on the fi xed point theory in Banach spaces and concept measure noncompactness. An illustrative example is given last section."

S. Belarbi Z. Dahmani

In this paper, we study the existence of solutions for fractional evolution equations with nonlocalconditions. These results are obtained using Banach contraction xed point theorem. Other resultsare also presented using Krasnoselskii theorem.

A Erduran I. Altun

In this paper, we give some xed point theorems for '-weak contractivetype mappings on complete G-metric space, which was given by Zaed andSims [1]. Also a homotopy result is given.

2003
F. Alauzet P. L. George B. Mohammadi P. Frey H. Borouchaki

This paper deals with adaptive simulation of time-dependent problems. Mesh adaptation for unsteady con gurations is especially important as the phenomenon evolves in the whole computational domain and, in order to capture such a phenomenon accurately on adapted meshes, one has to predict the evolution path. Here, we propose a new adaptive algorithm for time-dependent simulation; the idea is to ...

2002
MARTIN B. HANSEN ADRIAN BADDELEY RICHARD D. GILL

For applications in spatial statistics, an important property of a random set X in R k is its rst contact distribution. This is the distribution of the distance from a xed point 0 to the nearest point of X, where distance is measured using scalar dilations of a xed test set B. We show that, if B is convex and contains a neighbourhood of 0, the rst contact distribution function F B is absolutely...

2000
Naseer Shahzad

Some random xed point theorems for set-valued random operators under very mild conditions are established. Some recent results of O'Regan ([Proc. Amer. Math. Soc. 126 (1998), 3045{3053] and [Computers Math. Applic. 35 (1998), 27{34]) are improved signi cantly. The discussion in this paper underlines, in addition to generality, the unifying aspects of our result.

Journal: :نظریه تقریب و کاربرد های آن 0
m. salehi department of mathematics, islamic azad university, savadkooh branch, savadkooh, iran. v. dadashi department of mathematics, islamic azad university, sari branch, sari, iran. m. roohi department of mathematics, faculty of basic sciences, university of mazandaran, babolsar, iran.

some algorithms for nding common xed point of a family of mappings isconstructed. indeed, let c be a nonempty closed convex subset of a uniformlyconvex banach space x whose norm is gateaux di erentiable and let {tn} bea family of self-mappings on c such that the set of all common fixed pointsof {tn} is nonempty. we construct a sequence {xn} generated by the hybridmethod and also we give the ...

1999
Ludwig Arnold

The method of Lyapunov functions (Lyapunov's second or direct method) was originally developed for studying the stability of a xed point of an autonomous or non-autonomous diierential equation. It was then extended from xed points to sets, from diierential equations to dynamical systems and to stochastic diierential equations. We go one step further and develop Lyapunov's second method for rand...

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