## Ara

Toplam kayıt 52, listelenen: 1-10

#### A note on the chain rule on time scales

(Çankaya Üniversitesi, 2008-05)

It is known, in general, that the chain rule on general time scale derivatives does not behave well as in the case of usual derivative. However, we discuss some special cases where the time scale derivative has the usual ...

#### An exponential estimate for solutions of linear impulsive delay differential equations

(Academic Publication Council, 2007-06)

This paper is concerned with linear impulsive delay differential equations with impulsive conditions allowing delays in the index of the jumps. We obtain an exponential estimate for the solutions of such types of equations. ...

#### KKM mappings in cone metric spaces and some fixed point theorems

(Pergamon-Elsevier Science, 2010-01-01)

In this paper, we define KKM mappings in cone metric spaces and define NR-cone metric spaces to obtain some fixed point theorems and hence generalize the results obtained in [A. Amini, M. Fakhar, J. Zafarani, KKM mapping ...

#### Quasicone Metric Spaces and Generalizations of Caristi Kirk's Theorem

(Springer International Publishing, 2009)

Cone-valued lower semicontinuous maps are used to generalize Cristi-Kirik's fixed point theorem to Cone metric spaces. The cone under consideration is assumed to be strongly minihedral and normal. First we prove such a ...

#### On the existence and the uniqueness theorem for fractional differential equations with bounded delay within Caputo derivatives

(Science Press, 2008-10)

Local and global existence and uniqueness theorems for a functional delay fractional differential equation with bounded delay are investigated. The continuity with respect to the initial function is proved under Lipschitz ...

#### Razumikhin stability theorem for fractional systems with delay

(Hindawi Publishing Corporation, 2010)

Fractional calculus techniques and methods started to be applied successfully during the last decades in several fields of science and engineering. In this paper we studied the stability of fractional-order nonlinear ...

#### A Gregus type common fixed point theorem of set-valued mappings in cone metric spaces

(Eudoxus Press, 2011-05)

The main purpose of this paper is to obtain a common fixed point theorem for a pair of set-valued mappings of Gregus type condition in cone metric spaces, so that the main result obtained in [13] will be generalized to ...

#### Order norm completions of cone metric spaces

(Taylor&Francis Inc, 2011)

In this article, a completion theorem for cone metric spaces and a completion theorem for cone normed spaces are proved. The completion spaces are constructed by means of an equivalence relation defined via an ordered cone ...

#### A common fixed point theorem of a Gregus type on convex cone metric spaces

(Eudoxus Press, 2011-05)

The result of Ciric [1] on a common fixed point theorem of Gregus-type on metric spaces is extended to the class of cone metric spaces. Namely, a common fixed point theorem is proved in s-convex cone metric spaces under ...

#### Some Theorems and Examples of Cone Banach Spaces

(Eudoxus Press, 2010-10)

In this paper, by defining a cone norm parallel to.parallel to(A) on E over itself which behaves like the absolute value norm on R, we construct examples of cone Banach spaces. Namely, we define the m-Euclidian cone normed ...