Güncel Gönderiler: Dergiler / Journals
Toplam kayıt 1318, listelenen: 21-40
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The k-binomial and Catalan transforms of the k-Leonardo numbers
(Işık University Press, 2025-11-01)In this paper, we investigate the binomial transform and the Catalan transform of the k-Leonardo numbers and examine the new integer sequences. We apply the k-binomial, rising k-binomial, and falling k-binomial transforms ... -
A labeling approach to vertex N-magic weighted total graphs with vertex-odd values
(Işık University Press, 2025-11-01)The current text discusses the concept of odd vertex N-magic total graphs, a novel idea in the realm of vertex N-magic-type graphs. This idea is defined by N- magic with distinct degrees and identifies odd vertex labels ... -
New approach to evaluate the failure probability of a k-out-of-n system under harmful shocks
(Işık University Press, 2025-11-01)This paper introduces a novel approach to calculating the failure probability of k-out-of-n systems under harmful shocks, which occur randomly and affect at least one component. Traditional methods for this calculation ... -
The first Zagreb index, the forgotten topological index, the inverse degree and some Hamiltonian properties of graphs
(Işık University Press, 2025-11-01)Let G = (V, E) be a graph. The first Zagreb index and the forgotten topological index of a graph G are defined respectively as Σu∈Vd² (u) and Σu∈Vd³(u), where d(u) is the degree of vertex u in G. If the minimum degree of ... -
Fractional Cattaneo equation with a harmonic source and associated thermal stresses in axisymmetric and central symmetric cases
(Işık University Press, 2025-11-01)Integer and fractional order Cattaneo equations with a source varying harmonically in time under zero initial conditions are studied in the axisymmetric case and the central symmetric case. The integral transform techniques ... -
Chaos and complexity in a four-dimensional system with hyperbolic tangent nonlinearity and no equilibrium
(Işık University Press, 2025-11-01)This paper introduces a new four-dimensional (4-D) dynamical system composed of only seven terms: four linear terms, one nonlinear term involving the hyperbolic tangent function, one absolute value function term, and a ... -
Adaptive boosted estimation for single-index quantile regression
(Işık University Press, 2025-10-01)We propose a novel boosted estimation method for single-index quantile regression (SIQR) that combines the robustness of quantile regression with the flexibility of gradient boosting. By modeling the conditional quantile ... -
Signed sum cordial labeling of graphs
(Işık University Press, 2025-10-01)The notion of signed product cordial labeling was introduced in 2011 and further studied by several researchers. Inspired by this notion, we define a new concept namely signed sum cordial labeling as follows: A vertex ... -
Normality and regularity of Pythagorean fuzzy cellular spaces
(Işık University Press, 2025-10-01)Normality and regularity are key separation axioms that helps to classify and understand the structure of topological spaces. This research article investigates the properties of normality and regularity within the context ... -
On the fundamental theorems of (α, β)-Pythagorean fuzzy ideals of rings
(Işık University Press, 2025-10-01)An (α, β)-Pythagorean fuzzy set is a modern approach to handling ambiguity. This article represents the perception of an (α, β)-Pythagorean fuzzy coset of any (α, β)-Pythagorean fuzzy ideal of rings. We demonstrate several ... -
Equitable dominator coloring of graphs
(Işık University Press, 2025-10-01)This paper introduces a variant of domination-related coloring of graphs, called the equitable dominator coloring of graphs, which is a combination of equitable coloring and dominator coloring of graphs. The minimum number ... -
The hybrid form of the hyperbolic Horadam matrix functions
(Işık University Press, 2025-10-01)In the present paper, a special type of hybrid number is introduced whose components are the hyperbolic Horadam sine and cosine matrix functions. These hybrid numbers and their symmetrical forms are explored in detail, and ... -
Systems bifurcation of limit cycles for a family of discontinuous piecewise isochronous differential systems separated by irregular line
(Işık University Press, 2025-10-01)The study of Hilbert’s 16th problem for piecewise linear differential systems has received significant attention from many researchers. It was shown that the upper bound for the maximum number of limit cycles can vary ... -
Existence, uniqueness, and stability of solutions for nonlinear fractional integro-differential equations with nonlocal boundary conditions and fractional derivatives
(Işık University Press, 2025-10-01)This study investigates a nonlinear fractional integro-differential equation defined by Riemann-Liouville fractional derivatives, focusing on the existence, uniqueness, and stability of its solutions. Using advanced ... -
Paired domination integrity of derived graphs of cycles
(Işık University Press, 2025-10-01)The study of the vulnerability of real-life networks helps network designers construct networks such that their stability is maintained even under the disruption of a few nodes or links connecting the nodes. In this paper, ... -
Fuzzy primely filters in BL-algebras
(Işık University Press, 2025-10-01)This study introduces and rigorously examines the concept of fuzzy primely filters (FPYFs) in BL-algebras, marking a significant advancement in the field. The investigation extends beyond conceptualization to elucidate the ... -
Extensive exploration of multi-term hybrid functional equation vıa hybrid differential feedback control
(Işık University Press, 2025-10-01)This paper investigates the existence of solutions for a multidimensional hybrid functional equation with multiple delays, incorporating differential feedback control. The focus is on finding well-defined, continuous, and ... -
An efficient eighth order family of iterative method for solving systems of nonlinear equations
(Işık University Press, 2025-09-01)In this paper, we analyse the underlying computational cost as well as applicability of the new iterative methods for real-life problems and illustrate that the new schemes produce approximations of greater numerical ... -
A comparative study on prime and vertex k-prime labeling of one point union of path graphs
(Işık University Press, 2025-09-01)In our study, we investigate the structure of one point union of path graphs and prove that they admit a vertex k-prime labeling. Further a study on comparison between prime and vertex k-prime labeling for one point union ... -
Availability and reliability analysis of a two-unit parallel system subject to failure and repair operating in a multi-level environment
(Işık University Press, 2025-09-01)In this paper, a two-unit parallel system is considered subject to failure and repair in a multi-level environment. It is assumed that there are N levels of the environment. The failure time of any operating unit in the ...
