Journal of the Egyptian Mathematical Society
 Print ISSN
 1110256X
 Electronic ISSN
 20909128
 Publisher
 Sciencedirect
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 http://www.sciencedirect.com/science/journal/1110256X
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Journal of the Egyptian Mathematical Society 23(3):470 (2015)
In this paper, we investigate some new nonlinear retarded integral inequalities of Gronwall–Bellman–Pachpatte type. These inequalities generalize some former famous inequalities and can be used as handy tools to study the qualitative as well as the quantitative properties of solutions ... 
Journal of the Egyptian Mathematical Society 23(3):463 (2015)
In this paper the notion of dLfilters is introduced and characterized in principal MSalgebras. Also many properties of principal dLfilters of a principal MSalgebra are observed and a characterization of the class of all principal dLfilters is given. Finally, a relationship between... 
Journal of the Egyptian Mathematical Society 23(3):523 (2015)
In this paper we develop the total umbilicity of the spacelike submanifold M of a deSitter space with the help of some integral formulas, index form of a nonnull geodesic and the Jacobi equation. 
Journal of the Egyptian Mathematical Society 23(3):518 (2015)
The aim of the present paper is to give two intrinsic generalizations of AkbarZadeh’s theorem on a Finsler space of constant curvature. Some consequences, of these generalizations, are drown. 
Journal of the Egyptian Mathematical Society 23(3):494 (2015)
In this article, we study the periodicity, the boundedness and the global stability of the positive solutions of the following nonlinear difference equationxn+1=Axn+Bxnk+Cxnl+bxnkdxnkexnl,n=0,1,2,… where the coefficients A,B,C,b,d,e∈(0,∞), while k and l are positive integers. The... 
Journal of the Egyptian Mathematical Society 23(3):500 (2015)
We study some connections between μ lacunary strong χAuv2convergence with respect to a mn sequence of moduli Musielak and μ lacunary χAuv2 statistical convergence, where A is a sequence of four dimensional matrices Auv=ak1,…,krℓ1,…,ℓsm1,…,mrn1,…,nsuv of complex numbers. 
Journal of the Egyptian Mathematical Society 23(3):507 (2015)
In this paper we introduce natural metrics in the hyperbolic Bloch and QKtype spaces with respect to which these spaces are complete. Moreover, Lipschitz continuous, bounded and compact superposition operators Sϕ from the hyperbolic Bloch type space to the hyperbolic QKtype space are... 
Journal of the Egyptian Mathematical Society 23(3):I (2015)

Journal of the Egyptian Mathematical Society 23(3):535 (2015)
In this paper, we present the covering rough sets based on neighborhoods by approximation operations as a new type of extended covering rough set models. In fact, we have introduced generalizations to W. Zhu approaches (Zhu, 2007). Based on the notion of neighborhood induced from any b... 
Journal of the Egyptian Mathematical Society 23(3):457 (2015)
Motivated by an open problem of Abawajy et al. [1] we find some relations between power graphs and Cayley graphs of finite cyclic groups. We show that the vertex deleted subgraphs of some power graphs are spanning subgraphs or equal to the complement of vertex deleted subgraphs of some... 
Journal of the Egyptian Mathematical Society 23(3):490 (2015)
Rossler positive braids are defined and denoted by Rm+. We represented a general form of Rossler positive braid, and its associated permutation. For the m period Rossler positive braid Rm+, the number of crossing equals to [2(m2)+(m1)], and the genus g(Rm+)=(m2), it also has a braid... 
Journal of the Egyptian Mathematical Society 23(3):IFC (2015)

Journal of the Egyptian Mathematical Society 23(3):513 (2015)
In this paper, we construct and obtain the necessary condition of Weingarten and linear Weingarten translation surfaces in E3. Special cases of these types are investigated and plotted. 
Journal of the Egyptian Mathematical Society 23(3):527 (2015)
In this paper, we introduce and study a new class of sets in a bitopological space (X, τ1, τ2), namely, ijψ∗closed sets, which settled properly in between the class of jiαclosed sets and the class of ijgαclosed sets. We also introduce and study new classes of spaces, namely, ijT... 
Journal of the Egyptian Mathematical Society 23(3):476 (2015)
The purpose of this paper is to introduce necessary and sufficient condition of (Gaussian) hypergeometric functions to be in a subclass of uniformly starlike and uniformly convex functions. Operators related to hypergeometric functions are also considered. Some of our results correct p... 
Journal of the Egyptian Mathematical Society 23(3):III (2015)

Journal of the Egyptian Mathematical Society 23(3):546 (2015)
We introduce a new family of continuous distributions called the Kumaraswamy MarshalOlkin generalized family of distributions. We study some mathematical properties of this family. Its density function is symmetrical, leftskewed, rightskewed and reversedJ shaped, and has constant, ... 
Journal of the Egyptian Mathematical Society 23(3):482 (2015)
In this paper we derive rigorously the amplitude equation, using the natural separation of timescales near a change of stability, for the stochastic generalized Swift–Hohenberg equation with quadratic and cubic nonlinearity in this formdu=(1+∂x2)2u+νεu+γu2u3dt+σεdW,where W(t)is a Wi... 
Journal of the Egyptian Mathematical Society 23(3):563 (2015)
The problem of fully developed natural convective micropolar fluid flow is investigated. The slip boundary conditions for fluid velocity are applied. Nondimensional variables are introduced. The closed form solutions of the field equations are represented graphically. As expected, it ... 
Journal of the Egyptian Mathematical Society 23(3):568 (2015)
The human body is a complex structure where the balance of mass and heat transport in all tissues is necessary for its normal functioning. The stabilities of intracellular and extracellular fluids are important physiological factors responsible for homoeostasis. To estimate the effects...