Güncel Gönderiler: Işık Üniversitesi Yayınları
Toplam kayıt 1440, listelenen: 521-540
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Zagreb equienergetic bipartite graphs
(Işık University Press, 2023-10)Let G be a graph with vertices v1, v2, . . . , vn and let di be the degree of vi. The Zagreb matrix of the graph G is the square matrix of order n whose (i, j)-entry is equal to di + dj if the vertices vi and vj are adjacent, ... -
On coefficient estimates for certain subclasses of bi-univalent functions
(Işık University Press, 2023-10)We introduce certain subclasses of bi-univalent functions related to the generalized Janowski functions and estimate the general coefficient bound for the newly defined classes. Also, we deduce certain new results and the ... -
Invariances of strongly continuous quasi semigroups and disturbance decoupling problems
(Işık University Press, 2023-10)In this paper, invariances of a subspace of a Hilbert space under strongly continuous quasi semigroup (C?-quasi semigroup) are characterized. The invariancerelationship between the C?-quasi semigroups and its infinitesimal ... -
Critical point results and their applications
(Işık University Press, 2023-10)The purpose of this paper is to study the concept of a critical point in complete cone metric spaces and its application in Ekeland type variational principle. For this, we consider the concept of a ?-space, which is weaker ... -
The homogeneous q-difference operator and the related polynomials
(Işık University Press, 2023-10)We create the homogeneous q-difference operator Ee(a, b; ?) as an extension of the exponential operator E(b?). A new polynomials hn(a, b, x|q?1) are defined as an extension of the q?1-Rogers-Szegö polynomial hn(a, b|q?1). ... -
Signless Laplacian polynomial for splice and link of graphs
(Işık University Press, 2023-10)The signless Laplacian matrix of a graph G is Q(G) = A(G) + D(G), where A(G) is the adjacency matrix and D(G) is the diagonal degree matrix of a graph G. The characteristic polynomial of the signless Laplacian matrix is ... -
Fixed point results in Ab-metric space
(Işık University Press, 2023-10)We derive some fixed point results in Ab- metric space in which map need not be continuous. In addition, we find fixed point and common fixed theorems having rational expressions in the contractive condition. Our results ... -
A subclass of bi-univalent functions related to shell-like curves connected with Fibonacci numbers associated with (p, q)-derivative
(Işık University Press, 2023-10)In this paper, we define a new subclass of bi-univalent functions related to shell-like curves connected with Fibonacci numbers by using (p, q)-derivative and the coefficient estimates, Fekete-Szego inequalities are discussed ... -
Application of Mittag–Leffler function on certain subclasses of analytic functions
(Işık University Press, 2023-10)The purpose of the present paper is to find the sufficient conditions for some subclasses of analytic functions associated with Mittag-Leffler function to be in subclasses of k?ST[A, B] and k?UCV[A, B] involving Jack’s ... -
On the coefficient bounds for a subclass of bi-univalent functions by using S?l?gean differential operators
(Işık University Press, 2023-10)Making use of S?l?gean differential operator, in this paper, we introduce and investigate an interesting subclass Sh,p? (k, ?) of bi-univalent functions in the open unit disk U. Furthermore, we find estimates on the |a2| ... -
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 ... -
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, ...
