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  1. In this paper, the generalized Sylvester matrix equation AV + BW = EVF + C over reflexive matrices is considered. An iterative algorithm for obtaining reflexive solutions of this matrix equation is introduced. Wh...

    Authors: Mohamed A. Ramadan, Naglaa M. El–shazly and Basem I. Selim

    Citation: Journal of the Egyptian Mathematical Society 2019 27:27

    Content type: Original research

    Published on:

  2. In this paper, we have a tendency to investigate a particular Weingarten and linear Weingarten varieties of canal surfaces according to Bishop frame in Euclidean 3-space E3 satisfying some fascinating and necessa...

    Authors: M. A. Soliman, W. M. Mahmoud, E. M. Solouma and M. Bary

    Citation: Journal of the Egyptian Mathematical Society 2019 27:26

    Content type: Original research

    Published on:

  3. This paper aims at showing that Frenet apparatus of an evolute curve can be formed in terms of Frenet apparatus of its involute curve in the hyperbolic (de Sitter) space. Also, we establish relationships among Fr...

    Authors: H. S. Abdel-Aziz, M. Khalifa Saad and A. A. Abdel-Salam

    Citation: Journal of the Egyptian Mathematical Society 2019 27:25

    Content type: Original research

    Published on:

  4. According to the characterization of decomposable MS-algebras in terms of triples (M,D,φ), where M is a de Morgan algebra, D is a distributive lattice with 1 and φ is a (0,1)-homomorphism of M into F(D), the filt...

    Authors: Abd El-Mohsen Badawy and Ahmed Gaber

    Citation: Journal of the Egyptian Mathematical Society 2019 27:23

    Content type: Original research

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  5. This paper introduces a new efficient satisfiability problem (SAT) solver, negative-literal Van der Waerden numbers SAT solver (NegVanSAT). It is a modification of the

    Authors: Munira A. Abd El-Maksoud and Areeg Abdalla

    Citation: Journal of the Egyptian Mathematical Society 2019 27:22

    Content type: Original research

    Published on:

  6. Edge even graceful labeling is a new type of labeling since it was introduced in 2017 by Elsonbaty and Daoud (Ars Combinatoria 130:79–96, 2017). In this paper, we obtained an edge even graceful labeling for so...

    Authors: Mohamed R. Zeen El Deen

    Citation: Journal of the Egyptian Mathematical Society 2019 27:20

    Content type: Original research

    Published on:

  7. The object of the present paper was to introduce the notion of hyper generalized φ-recurrent Sasakian manifold and quasi generalized φ-recurrent Sasakian manifold and study its various geometric properties. The e...

    Authors: Venkatesha Venkatesha, H. Aruna Kumara and Devaraja Mallesha Naik

    Citation: Journal of the Egyptian Mathematical Society 2019 27:19

    Content type: Original research

    Published on:

  8. The main object of this paper is to investigate some subordination results of certain subclasses of multivalent analytic functions which are defined by a generalized fractional differintegral operator. Inclusi...

    Authors: Hanaa M. Zayed

    Citation: Journal of the Egyptian Mathematical Society 2019 27:17

    Content type: Original research

    Published on:

  9. In this paper, two bounded bi-univalent function subclasses were defined by using Salagean q-differential operator. The functions are defined in the open unit disc of complex plane. The main purpose is to determi...

    Authors: Alaa Hassan El-Qadeem and Mohammed Ahmed Mamon

    Citation: Journal of the Egyptian Mathematical Society 2019 27:16

    Content type: Original research

    Published on:

  10. Uncertainty has been used in different areas in our life such as medical diagnosis, social studies, pharmacology and others. The soft set theory and rough set theory are treated as mathematical approaches to d...

    Authors: Heba I. Mustafa

    Citation: Journal of the Egyptian Mathematical Society 2019 27:15

    Content type: Original research

    Published on:

  11. Thermodynamic properties of heavy mesons are calculated within the framework of the N-dimensional radial Schrödinger equation. The Cornell potential is extended by including the quadratic potential plus the inver...

    Authors: M. Abu-Shady, T. A. Abdel-Karim and Sh. Y. Ezz-Alarab

    Citation: Journal of the Egyptian Mathematical Society 2019 27:14

    Content type: Original research

    Published on:

  12. This research presents the reader some algebraic operations related to combinatorial games and gives a detailed outlook of a special game called Hackenbush game. We will deduce a group with a special feature w...

    Authors: Awad Alabdala and Essam El-Seidy

    Citation: Journal of the Egyptian Mathematical Society 2019 27:13

    Content type: Original research

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  13. In this paper, we obtain bi-univalent properties for certain class of Bazilevič functions defined by convolution and with bounded boundary rotation. We will find coefficient bounds for |a2| and |a3| for the class...

    Authors: Mohamed K. Aouf, Samar M. Madian and Adela O. Mostafa

    Citation: Journal of the Egyptian Mathematical Society 2019 27:11

    Content type: Original research

    Published on:

  14. For the importance of deteriorating in units, this paper presents a Constraint Deteriorating Probabilistic Periodic Review Inventory Model (CDPPRIM), a model which is applicable under some assumptions: (1) the...

    Authors: O. M. Hollah and H. A. Fergany

    Citation: Journal of the Egyptian Mathematical Society 2019 27:10

    Content type: Original research

    Published on:

  15. This work analyzes the unsteady two-dimensional nanofluid flow over a vertical stretching permeable surface in the presence of an inclined magnetic field and non-uniform heat source/sink. Four different types ...

    Authors: N. S. Elgazery

    Citation: Journal of the Egyptian Mathematical Society 2019 27:9

    Content type: Original research

    Published on:

  16. In this paper, we introduce the concepts of Stone elements, central elements and Birkhoof central elements of a double MS-algebra and study their related properties. We observe that the center C(L) of a double MS

    Authors: Abd El-Mohsen Badawy

    Citation: Journal of the Egyptian Mathematical Society 2019 27:6

    Content type: Original research

    Published on:

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    Journal of the Egyptian Mathematical Society is the official journal of the Egyptian Mathematical Society.

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