Browsing Jaem 2022, Vol 12, No 3 by Issue Date
Now showing items 120 of 35

Determination of a nonlinear source term in a reactiondiffusion equation by using finite element method and radial basis functions method
(Işık University Press, 2022)In this paper, two numerical methods are presented to solve a nonlinear inverse parabolic problem of determining the unknown reaction term in the scalar reactiondiffusion equation. In the first method, the finite element ... 
Introduction to total dominator edge chromatic number
(Işık University Press, 2022)We introduce the total dominator edge chromatic number of a graph G. A total dominator edge coloring (briefly TDEcoloring) of G is a proper edge coloring of G in which each edge of the graph is adjacent to every edge of ... 
Inverse problem for Albertson irregularity index
(Işık University Press, 2022)Graph indices have attracted great interest as they give us numerical clues for several properties of molecules. Some indices give valuable information on the molecules under consideration using mathematical calculations ... 
State estimation of a chaotic Galton board model
(Işık University Press, 2022)In this study, the application of the gradient descent of indeterminism (GDI) shadowing filter to a recently proposed chaotic Galton board model is presented and discussed. It is found that the original GDI shadowing filter ... 
Shearlet shrinkage with integrodifferential equations using 3dimensional continuous shearlet transform
(Işık University Press, 2022)The generalization of continuous wavelet, a directional multiscale is known as continuous shearlet which is able to study the directional functions and distributions. Many useful features do not carry from 2dimensional ... 
On the orbits of some metabelian groups
(Işık University Press, 2022)In this study, the orbits of non abelian metabelian groups of order 26, 28 and 30 are found using conjugation action. The non abelian metabelian groups considered in this study are some dihedral groups D₁₃, D₁₄ and D₁₅ as ... 
Numerical solutions of nonlinear parabolic equations with Robin condition: Galerkin approach
(Işık University Press, 2022)In this paper, classical solutions of nonlinear parabolic partial differential equations with the Robin boundary condition are approximated using the Galerkin finite element method (GFEM) which is associated with the ... 
Recurrence relations for moments of Progressively TypeII Censored from WeibullRayleigh distribution and its characterizations
(Işık University Press, 2022)This paper is devoted to get new recurrence relations satisfied by the single and product moments based on Progressively TypeII Censored (ProgTII) from the three parameters WeibullRayleigh distribution (WRD) and doubly ... 
‘Del’ relation and parallelism in fuzzy lattices
(Işık University Press, 2022)The notions of ‘del’ relation, a neutral element and parallelism from lattice theory are introduced in a fuzzy lattice and their properties are obtained. 
A minimax inequality and its applications
(Işık University Press, 2022)A minimax inequality of Ky Fan for mapping with noncompact domain is given. Moreover, some minimax inequalities are obtained. 
Almost periodic positive solutions for a delayed nonlinear density dependent mortality Nicholson’s blowflies model on time scales
(Işık University Press, 2022)In this paper we discuss a nonlinear density dependent mortality Nicholson’s blowflies equation with multiple pairs of time varying delays. By contraction mapping theorem, we derived the necessary conditions for the existence ... 
Fixed point theorems of fuzzy partial metric spaces
(Işık University Press, 2022)Fuzzy metric space has been defined using fuzzy numbers by many researchers. Recently Xia and Guo [20] have introduced fuzzy metric space using fuzzy scalars which is similar to the classical metric space. In this work we ... 
A novel third kind Chebyshev wavelet collocation method for the numerical solution of stochastic fractional Volterra integrodifferential equations
(Işık University Press, 2022)In the formulation of natural processes like emissions, population development, financial markets, and the mechanical systems, in which the past affect both the present and the future, Volterra integrodifferential equations ... 
Numerical solution of second order linear hyperbolic telegraph equation
(Işık University Press, 2022)This paper is of about a numerical solution of the second order linear hyperbolic telegraph equation. To solve numerically the second order linear hyperbolic telegraph equation, the cubic Bspline collocation method is ... 
The mean reverting OrnsteinUhlenbeck processes with nonlinear autoregressive drift term innovations
(Işık University Press, 2022)The main purpose of this paper is to present a new approach for energy markets governed by a twofactor OrnsteinUhlenbeck process with a stochastic nonlinear autoregressive drift term innovation and an unknown diffusion ... 
Some results on graceful centers of Pn and related αgraceful graphs
(Işık University Press, 2022)In this paper, we have proved that the graph obtained by joining two copies of a bipartite graceful graph by an edge with any two corresponding vertices of both the copies of graphs is αgraceful. We also proved path step ... 
Effects of heat source/sink on DarcianBenardMagnetoMarangoni convective instability in a composite layer subjected to nonuniform temperature gradients
(Işık University Press, 2022)The problem of BènardMagnetoMarangoni convection in a composite layer which is infinite along x and y directions is considered for the Darcian case in the presence of constant heat source/sink in both the layers. This ... 
Bipolar intuitionistic fuzzy CK compact spaces
(Işık University Press, 2022)The objective of this article is to initiate the innovative views on bipolar intuitionistic fuzzy topological space, bipolar intuitionistic fuzzy C compact and its preimage, orbit and image followed by some of its special ... 
Certain generating functions involving the incomplete Ifunctions
(Işık University Press, 2022)In this paper, we have derived a set of generating functions for incomplete Ifunctions. Bilateral along with linear generating relations are derived for incomplete Ifunctions. The results obtained are of a general nature, ... 
On leap Zagreb indices of some cycle related graphs
(Işık University Press, 2022)Let G = (V, E) represent a graph. The 2degree of a vertex v in G is the number of vertices which are at distance two from v and denoted by d₂(v). The leap Zagreb indices are the recently introduced distancebased topological ...