Dergiler / Journals: Recent submissions
Now showing items 81-100 of 1262
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The subordination theorem for γ-µ-spiral-like functions of order λ
(Işık University Press, 2025-05-01)In this paper, we introduce a novel subclass Sγ(λ, µ) of normalized analytic functions in the open unit disk U. First we obtain several sufficient conditions that a function belongs to the subclass Sγ(λ, µ). Furthermore, ... -
On Fibonacci cordial labeling of some planar graphs
(Işık University Press, 2025-05-01)An injective function f from vertex set V (G) of a graph G to the set {F0, F1, F2, · · · , Fn}, where Fi is the iᵗʰ Fibonacci number (i = 0, 1, · · · , n), is said to be Fibonacci cordial labeling if the induced function ... -
Connected certified domination stable and critical graphs upon edge addition
(Işık University Press, 2025-05-01)A set of vertices Dc in a connected graph Γ = (VΓ, EΓ) is called a certified dominating set if |NΓ(u) ∩ (VΓ − Dc)| is either 0 or at least 2, ∀u ∈ Dc. The set Dc is called as connected certified dominating set if |N(u) ∩ ... -
m-Eternal total bondage number in circulant graphs
(Işık University Press, 2025-05-01)An Eternal dominating set of a graph is defined as a set of guards located at vertices, required to protect the vertices of the graph against infinitely long sequences of attacks, such that the configuration of guards ... -
Designs arising from products of hypergraphs of cycles
(Işık University Press, 2025-05-01)In this paper, we have considered many standard graph products viz. cartesian product, direct product, strong product and lexicographic product, and extended these graph products to hypergraphs which are natural generalizations ... -
A variable sampling plan based on quadratic random decision function using classical and Bayesian estimates under type II hybrid censored samples
(Işık University Press, 2025-05-01)This article endeavors to develop a single variable sampling plan when the lifetime of product follows the exponential distribution. The sampling plan has been developed by assuming that the life test is under type II ... -
Modeling the effects of soil improvement on train induced random ground-borne vibrations
(Işık University Press, 2025-05-01)Ground-borne vibrations by railway trains are generated at the rail-wheel interface due to the passage of wheels and due to irregularities of wheels and tracks. These vibrations need to be predicted and controlled during ... -
Zweier ideal convergence sequence spaces defined by Orlicz function on neutrosophic normed spaces
(Işık University Press, 2025-05-01)The present article is introduced to study the concept of Zweier ideal convergent sequence space which is characterised by Orlicz function on neutrosophic normed spaces. Some important topological and algebraic properties ... -
Estimating the bound set of a chaotic system and its application in chaos synchronization
(Işık University Press, 2025-05-01)In this paper, we investigate the ultimate bound set for a chaotic system. Based on Lagrange multiplier method, an optimization problem has been done analytically to calculate a precise ultimate bound set of the chaotic ... -
Modified Sombor index of trees
(Işık University Press, 2025-05-01)The modified Sombor index of a graph G, denoted by ᵐSO(G), is defined as the sum of weights 1/√d2G(u)+d2G(v) of all edges uv of E(G), where dG(u) denotes the degree of a vertex u in G. In this paper we show that for any ... -
Estimation and tests with bivariate censored data
(Işık University Press, 2025-05-01)In this work, we study the asymptotic properties of the maximum likelihood estimator, for bivariate right censored data. We also propose a generalization of the likelihood ratio test and the chi-square test of fit, for ... -
On a class of constacyclic codes over the ring Z4[u]/< u² − 3 >
(Işık University Press, 2025-04-01)In this paper, λ-constacyclic codes and skew-λ-constacyclic codes over the ring R = Z4[u]/< u² − 3 > are studied for λ = 3 and 2 + 3u. Introducing new Gray maps from R to the copies of Z4, we observed that Gray images of ... -
The extended Legendre wavelets operational matrix of integration and its applications
(Işık University Press, 2025-04-01)In this paper, the general operational matrix of integration P based on the extended Legendre wavelets has been developed which generalizes the idea of the operational matrix of integration for µ = 2 given in [30]. A brief ... -
Distinguishing number in some aspects of dendrimers
(Işık University Press, 2025-04-01)The main purpose of the present study is to determine the distinguishing number of some dendrimers. The most known dendrimers such as Polyamidoamine (PAMAM), polylysine (PLL), Poly propyl ether imine (PETIM) and zinc ... -
Solving a nonlinear inverse problem of the Camassa-Holm equation
(Işık University Press, 2025-04-01)In order to solve the nonlinear inverse Camassa-Holm equations, a numerical method is developed by applying finite difference formula to time discrimination and collocation of polynomial scaling functions for spatial ... -
Transition to chaos in high control parameter of Swift–Hohenberg equation
(Işık University Press, 2025-04-01)The Swift-Hohenberg equation, which is a parabolic equation, is studied at high values of the control parameter. The method used is exponential time differencing combined with fourth-order Runge-Kutta (ETDRK4). The solution ... -
Fixed point theorems on S-metric spaces for generalized F-contraction and application
(Işık University Press, 2025-04-01)Under the context of complete S-metric spaces, we establish certain fixed point theorems for generalized F-contraction of Khan type [4], Meir-Keeler type [10], and Meir-Keeler-Khan type [9]. We also provide some corollaries ... -
On Caputo-Fabrizio fractional integro-differential equations
(Işık University Press, 2025-04-01)In this paper, we established some new results concerning the existence, uniqueness and stability results for a nonlinear Caputo-Fabrizio fractional periodic VolterraFredholm integro-differential equation with the initial ... -
A study on the complements of the elements of Z-soft covering based rough lattice and its application
(Işık University Press, 2025-04-01)In this paper, we discuss information system I = (Ω, B) and related Z-soft covering based rough lattices (TS, ∨, ∧) in which ∨ denotes join and ∧ denotes meet. We prove the existence of maximal and minimal elements for ... -
Interval-valued Fermatean fuzzy sets approach for the Spearman rank correlation coefficient
(Işık University Press, 2025-04-01)Correlation is an important concept that can be used to analyze data sets and assist business leaders in gaining valuable insights into the relationships between business outcomes. When conducting a correlation analysis, ...
