Journal of the Egyptian Mathematical Society
2090-9128
Cơ quản chủ quản: N/A
Phân tích ảnh hưởng
Các bài báo tiêu biểu
Modeling, analyzing and simulating the dynamics of Lassa fever in Nigeria
- 2022
AbstractLassa fever is an infectious and zoonotic disease with incidence ranging
between a hundred to three hundred thousand cases, with approximately five
thousand deaths reported yearly in West Africa. This disease has become endemic
in the Lassa belt of Sub-Saharan Africa, thus increasing the health burden in
these regions including Nigeria. A deterministic mathematical model is presented
to st...
Some nano topological structures via ideals and graphs
Tập 28 Số 1 - 2020
AbstractIn this paper, new forms of nano continuous functions in terms of the
notion of nano Iα-open sets called nano Iα-continuous functions, strongly nano
Iα-continuous functions and nano Iα-irresolute functions will be introduced and
studied. We establish new types of nano Iα-open functions, nano Iα-closed
functions and nano Iα-homeomorphisms. A comparison between these types of
functions and o...
Bifurcation analysis of a composite cantilever beam via 1:3 internal resonance
- 2020
AbstractIn this paper, we study a multiple scales perturbation and numerical
solution for vibrations analysis and control of a system which simulates the
vibrations of a nonlinear composite beam model. System of second order
differential equations with nonlinearity due to quadratic and cubic terms,
excited by parametric and external excitations, are presented. The controller is
implemented to cont...
On the inverse sum indeg index of some graph operations
- 2020
AbstractTopological indices are the molecular descriptors that describe the
structures of chemical compounds. They are used in isomer discrimination,
structure-property relationship, and structure-activity relations. The
topological indices are used to predict certain physico-chemical properties such
as boiling point, enthalpy of vaporization, and stability. In this paper, the
inverse sum indeg in...
Casson rheological flow model in an inclined stenosed artery with non-Darcian porous medium and quadratic thermal convection
AbstractThe current study investigates the combined response of the
Darcy–Brinkman–Forchheimer and nonlinear thermal convection influence among
other fluid parameters on Casson rheology (blood) flow through an inclined
tapered stenosed artery with magnetic effect. Considering the remarkable
importance of mathematical models to the physical behavior of fluid flow in
human systems for scientific, bi...
Bi-univalent properties for certain class of Bazilevič functions defined by convolution and with bounded boundary rotation
Tập 27 Số 1 - 2019
The periodic rotary motions of a rigid body in a new domain of angular velocity
Tập 29 Số 1 - 2021
AbstractIn the previous works, the limiting case for the motion of a rigid body
about a fixed point in a Newtonian force field, which comes from a gravity
center lies on Z-axis, is solved. The authors apply the small parameter
technique which is achieved giving the body a sufficiently large angular
velocity component ro about the fixed z-axis of the body. The periodic solutions
of motion are obtai...
Generalized mixed equilibrium problems and quasi- ϕ-asymptotically nonexpansive multivalued mappings in Banach spaces
Tập 27 - Trang 1-16 - 2019
In this paper, we introduce two iterative algorithms for finding a common
element of the set of fixed points of a quasi- ϕ-asymptotically nonexpansive
multivalued mapping and the sets of solutions of generalized mixed equilibrium
problem in Banach space. Then, we prove strong and weak convergence of the
sequences to element in the mentioned set. Our results generalize and improve
recent results an...
Solvability of initial-boundary value problem of a multiple characteristic fifth-order operator-differential equation
- 2019
Abstract In this study, we establish existence-uniqueness of a vector function
in appropriate Sobolev-type space for a boundary value problem of a fifth-order
operator differential equation. Proper conditions are obtained for the given
problem to be well-posed. Much effort is devoted to develop the association
between these conditions and the operator coefficients of the investigated
equation. In ...