Güncel Gönderiler: Dergiler / Journals
Toplam kayıt 1151, listelenen: 281-300
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Upper bound for third Hankel determinant of a class of analytic functions
(Işık University Press, 2023-10)We establish upper bounds for second Hankel determinant, the Fekete-Szegö functional and third Hankel determinant for normalized analytic functions f ? W?(?, ?),W?(?, ?) = { f : Re ((1 ? ? + 2?)f(z)/z+ (? ? 2?)f?(z) + ... -
Some Hermite–Hadamard inequalities involving weighted integral operators via (h, s, m)-convex functions
(Işık University Press, 2023-10)In this work, we establish new integral inequalities of Hermite–Hadamard type, within the framework of generalized integrals, which contain the Riemann–Liouville fractional integrals as particular case. We use a definition ... -
Stability analysis of a fractional order coronavirus(COVID-19) epidemic model
(Işık University Press, 2023-10)In this paper a six-compartmental coronavirus(COVID-19) epidemic model is developed. We have divided the total population into five classes, namely susceptible, exposed, infected, treatment, recovered and the concentration ... -
Topological indices of total graph of the ring Z? × Zm
(Işık University Press, 2023-10)In this paper, we compute some distance-based topological indices namely Wiener index, hyper Wiener index and reverse Wiener index of the total graph of the ring Zn × Zm. We also compute some eccentricity-based topological ... -
Domination changing and unchanging signed graphs upon the vertex removal
(Işık University Press, 2023-10)A subset S of V (?) is a dominating set of ? if |N?(v) ? S| > |N?(v) ? S| for all v ? V ? S. This article is to start a study of those signed graphs that are stable and critical in the following way: If the removal of an ... -
Modified bisection algorithm in estimating the extreme value index under random censoring
(Işık University Press, 2023-10)The Generalized Pareto Distribution (GPD) has long been employed in the theories of extreme values. In this paper, we are interested by estimating the extreme value index under censoring. Using a maximum likelihood estimator ... -
Laceability properties in the image graph of Prism graphs
(Işık University Press, 2023-10)A connected graph G is termed Hamiltonian-t-laceable if there exists in it a Hamiltonian path between every pair of vertices u and v with the property d(u, v) = t, 1 ? t ? diam(G), where t is a positive integer. In this ... -
An iterative approach for fuzzy multi objective linear fractional programming problem
(Işık University Press, 2023-10)In this paper, we introduce an iterative method for the solution of fully fuzzy single and multi objective linear fractional programming problems with out converting them into equivalent crisp forms. By introducing fuzzy ... -
Solution of the optimal program trajectory and control of the discretized equation of motion of sucker-rod pumping unit in a newtonian fluid
(Işık University Press, 2023-10)In this paper, the problem of construction of the optimal trajectory and control for oscillatory systems with liquid dampers in the movement of the sucker-rod pumping unit is considered. Firstly, the equation of motion is ... -
Certain subclasses of analytic function by S?l?gean q-differential operator
(Işık University Press, 2023-10)The theory of q-analysis has many applications in various sub-fields of mathematics and quantum physics. In the present article, we define the class Tn(?, ?; q) using the S?l?gean q-differential operator. For functions ... -
The Kannan fixed point theorem in incomplete modular spaces
(Işık University Press, 2023-10)In this paper, we prove a fixed point theorem for Kannan contraction mappings definded on incomplete orthogonal modular spaces. Our results improve one of the results given by Abdou and Khamsi [Abdou, A. A. N. and Khamsi, ... -
Exact closed form solutions of compound Kdv Burgers’ equation by using generalized (G?/G) expansion method
(Işık University Press, 2023-10)In this investigation, the compound Korteweg-de Vries (Kd-V) Burgers equation with constant coefficients is considered as the model, which is used to describe the properties of ion-acoustic waves in plasma physics, and ... -
On quasi statistical convergence in gradual normed linear spaces
(Işık University Press, 2023-10)During the last few years, enormous works by different researchers have been carried out in summability theory by linking different notions of convergence of sequences. In the present paper, we introduce the concept of ... -
On the metric dimension of a class of planar graphs
(Işık University Press, 2023-10)Let H = (V, E) be a non-trivial connected graph with vertex set V and edge set E. A set of ordered vertices Rm from V (H) is said to be a resolving set for H if each vertex of H is uniquely determined by its vector of ... -
Strong asymptotic stability for a coupled system of degenerate wave equations with only one fractional feedback
(Işık University Press, 2023-10)We prove the well-posedness and study the strong asymptotic stability of a coupled system of degenerate wave equations with a fractional feedback acting on one end only. -
Modeling disease transmission dynamics with random data and heavy tailed random effects: the Zika case
(Işık University Press, 2023-10)In this study, we investigate a compartmental model of Zika Virus transmission under random effects. Random effects enable the analysis of random numerical characteristics of transmission, which cannot be modeled through ... -
Stabilization of hyperbolic FitzHugh-Nagumo equations with one interior feedback controller
(Işık University Press, 2023-10)We show that the hyperbolic modification of FitzHugh-Nagumo system defined in a bounded domain G ? R? is global exponetally stablizable by a feedback controller action in an open subdomian ? ? G such that G \ ? is sufficiently ... -
Standard single valued neutrosophic metric spaces with application
(Işık University Press, 2023-07)In recent years, J. R. Kider and Z.A. Hussain have introduced the notion of standard fuzzy metric space and some basic properties were proved. In this paper, we generalize this notion to the setting of single valued ... -
Minimum generating sets for complete graphs
(Işık University Press, 2023-07)Let G be a graph with edges labeled by ideals of a commutative ring R with identity. Such a graph is called an edge-labeled graph over R. A generalized spline is a vertex labeling so that the difference between the labels ... -
Extinction of cholera using deterministic and stochastic models incorporating vigilant human compartment
(Işık University Press, 2023-07)We study the effect of vaccination, sanitation and public health sensitization as prevention and control measures of cholera in deterministic and stochastic frameworks. To achieve this, a deterministic mathematical model ...
