Journal of the Egyptian Mathematical Society
 Print ISSN
 1110256X
 Electronic ISSN
 20909128
 Publisher
 Sciencedirect
 URL
 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...