Güncel Gönderiler: Isik University Institutional Repository
Toplam kayıt 2370, listelenen: 41-60
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Relatively prime inverse domination on vertex switching of some graphs
(Işık University Press, 2024-07)Let G = (V, E) be a non-trivial graph. A subset D of the vertex set V of a graph G is called a dominating set of G if every vertex in V − D is adjacent to a vertex in D. The domination number is the lowest cardinality of ... -
On I-convergence almost surely of complex uncertain sequences
(Işık University Press, 2024-07)In this paper, we explore the concepts of I-convergence almost surely and I*-convergence almost surely in complex uncertain theory and study some of their properties and identify the relationships between them. Also, we ... -
Impact of modulated magnetic field on the advent of ferroconvection in a permeable medium
(Işık University Press, 2024-07)The effect of time-periodic magnetic field modulation on the onset of ferroconvection in a magnetic fluid saturated densely packed porous medium is examined. In many systems, such as charges in electrostatic field and ... -
More on picture fuzzy sets and their properties
(Işık University Press, 2024-07)In this paper, some basic properties of the set of a picture fuzzy set truth values D* are studied. Also, using an adequate order ≤ of D*, some picture fuzzy sets operations are introduced by meaning a punctual order (point ... -
An estimate to functions with second derivatives in Hölder class by moduli of continuity and solutıon of Chandrasekhar’s white dwarf equation by Chebyshev wavelet
(Işık University Press, 2024-07)In this paper, modulus of continuity, second kind Chebyshev wavelet and Hölder class are studied. The moduli of continuity and approximations of functions whose second derivative belonging to H¨older class have been ... -
Absolute convergence with speed and matrix transforms
(Işık University Press, 2024-07)We define the notion of absolute convergence with speed, where the speed is defined by a monotonically increasing positive sequence λ. Also we present the notion of absolute λ-conservativity of a matrix, and the notion of ... -
Generation of graphs using hyper-edge replacement graph rewriting P system
(Işık University Press, 2024-07)Hyper-edge replacement graph grammar is considered a kernel in generating graphs and hypergraphs, and it has stood out enough to be noticed in recent years. George Paun proposed Membrane computing, frequently known as P ... -
Higher order Hermite-Fejér interpolation on the unit circle
(Işık University Press, 2024-07)The aim of this paper is to study the approximation of functions using a higher-order Hermite-Fej´er interpolation process on the unit circle. The system of nodes is composed of vertically projected zeros of Jacobi polynomials ... -
Average even divisor cordial labeling: a new variant of divisior cordial labeling
(Işık University Press, 2024-07)In the present paper, a new variant of divisor cordial labeling, named, an average even divisor cordial labeling, has been introduced. An average even divisor cordial labeling of a graph G* on n vertices, is defined by a ... -
Bipolar intuitionistic fuzzy matrices and its determinant
(Işık University Press, 2024-07)The theory of fuzzy sets has earned a lot of applications in science and engineering fields. Fuzzy sets include extensions such as intuitionistic and bipolar fuzzy sets. These concepts have now become significant in recent ... -
Existence and uniqueness results for a two-point nonlinear boundary value problem of Caputo fractional differential equations of variable order
(Işık University Press, 2024-07)In this article, we study the existence and uniqueness of solutions for a twopoint boundary value problem of Caputo fractional differential equation of variable order. The results are obtained by means of Banach’s and ... -
Uncertainty quantification of multivariate Gaussian process regression for approximating multivariate computer codes
(Işık University Press, 2024-07)Gaussian process regression (GPR) models have become popular as fast alternative models for complex computer codes. For complex computer code (CC) with multivariate outputs, a GPR model can be constructed separately for ... -
Growth of solutions of second order complex linear differential equations
(Işık University Press, 2024-07)In this paper, we study about order and hyper-order of growth of nontrivial solutions of f’’ + A(z)f’ + B(z)f = 0, where A(z) and B(z) are entire functions having some restrictions. These restrictions involve notions of ... -
Fibonacci range labeling on direct product of path and cycles graphs
(Işık University Press, 2024-07)The primary concept of direct product constitute from the idea of product graphs establish from Weichsel [13], where the direct product of two graphs is connected if and only if both are connected and are not bipartite. ... -
A Lattice structure of Z-soft covering based rough set and its application
(Işık University Press, 2024-07)The aim of this paper is to construct the lattice structure for Z-soft covering based rough set. First, we define an equivalence relation R’ on a universal set to obtain the equivalence classes induced by Z-soft covering-based ... -
Graceful coloring of ladder graphs
(Işık University Press, 2024-07)A graceful k-coloring of a non-empty graph G = (V, E) is a proper vertex coloring f : V (G) → {1, 2, ..., k}, k ≥ 2, which induces a proper edge coloring f*: E(G) → {1, 2, ..., k − 1} defined by f*(uv) = |f(u) − f(v)|, ... -
Further results on k-product cordial labeling
(Işık University Press, 2024-07)Let f be a map from V (G) to {0, 1, ..., k − 1} where k is an integer, 1 ≤ k ≤ |V (G)|. For each edge uv assign the label f(u)f(v)(mod k). f is called a k-product cordial labeling if |vf (i) − vf (j)| ≤ 1, and |ef (i) − ... -
Modular product of soft directed graphs
(Işık University Press, 2024-07)Soft set theory was proposed by D. Molodtsov as a mathematical framework for dealing with uncertain data. Many academics are now applying soft set theory in decision-making problems. In graph theory, a directed graph is a ... -
Switching of vertex on some graphs with geometric mean 3-equitable labeling
(Işık University Press, 2024-07)For a graph H with a vertex set P(H) and an edge set Q(H), if map g : P(H) → {0, 1, 2} and its induced map g*: Q(H) → {0, 1, 2} defined by g* (xy) =Γ√g(x)g(y)ꓶ; ∀xy ∈ Q(H), satisfies the absolute difference of the number ... -
Fuzzy two point boundary value problem with extension principle
(Işık University Press, 2024-07)In this study, we have propose a new method for solving fuzzy two point boundary value problem (FTPBVP) with certain types of fuzzy boundary conditions commonly encountered. We have investigate linear differential equations ...
