Güncel Gönderiler: Dergiler / Journals
Toplam kayıt 1262, listelenen: 501-520
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Riesz MRA of dyadic dilations and the corresponding Riesz wavelet on LCA groups
(Işık University Press, 2023-01)We have explored the concept of Riesz multiresolution analysis (Riesz MRA) on a locally compact Abelian group G, and have done a detailed study of the methods of construction of a Riesz wavelet from the given Riesz MRA. ... -
Several types of single-valued neutrosophic ideals and filters on a lattice
(Işık University Press, 2023-01)In this paper, we introduce and study the notions of prime, maximal and principal single-valued neutrosophic ideals (resp. filters) on a lattice. Several properties and characterizations of these types of ideals and filters ... -
A generalization of relation-theoretic contraction principle
(Işık University Press, 2023-01)In the present paper, we generalize relation-theoretic contraction principle using weaker class of contraction mappings which is assumed to be hold on the elements of a particular subset of the whole space, whose elements ... -
Applying multiquadric quasi-interpolation to solve Fokker-Planck equation
(Işık University Press, 2023-01)The Fokker-Planck equation (FPE) arises in various fields in physics, chemistry, natural science. It is difficult to obtain analytical solutions, accordingly we resort to numerical methods. In this study, we present a ... -
Regularized trace on separable Banach spaces
(Işık University Press, 2023-01)If H is a separable Hilbert space, Gül (2008) has shown that a regularized trace formula can be computed on L² (H, [0, ?]) for a second order differential operator with bounded operator-valued coefficients, where H is a ... -
Contraction and domination in fuzzy graphs
(Işık University Press, 2023-01)Fuzzy sets and logics is a true crowning achievement of the century. Among the variety of exemplary changes in science and technology, the concept of uncertainty played a significant role, which led to the development of ... -
A piecewise analytical iterative method for a wire-mass model
(Işık University Press, 2023-01)A wire-mass model is considered, where the wire is elastic and the mass is attached to the wire. We propose a piecewise analytical iterative method for simulating the motion of the mass attached to the wire. Our proposed ... -
Determination of a time-dependent coefficient in the time-fractional wave equation with a non-classical boundary condition
(Işık University Press, 2023-01)In this paper, an initial-boundary value problem for the time-fractional wave equation is considered. Given an additional condition, a time-dependent coefficient is determined and the existence and uniqueness theorem for ... -
Spherical fuzzy matrices
(Işık University Press, 2023-01)In this paper, we introduce spherical fuzzy matrices (SFMs) which is an advanced tool of the fuzzy matrices, intuitionistic fuzzy matrices and picture fuzzy matrices. We investigate the basic properties of SFMs and compare ... -
Numerical optimization algorithm based on genetic algorithm for a data completion problem
(Işık University Press, 2023-01)This work presents numerical optimization algorithm based on genetic algorithm to solve the data completion problem for Laplace’s equation. It consists of covering the missing data on the inaccessible part of the boundary ... -
An iterative method for solving time-fractional partial differential equations with proportional delays
(Işık University Press, 2023-01)This article deals with an iterative method which is a new formulation of Adomian decomposition method for solving time-fractional partial differential equations (TFPDEs) with proportional delays. The fractional derivative ... -
Bayesian estimation using Lindley’s approximation of Inverted Kumaraswamy distribution based on lower record values
(Işık University Press, 2023-01)In this paper, we have considered estimation of unknown parameters based on lower record values for Inverted Kumaraswamy distribution. Maximum likelihood and approximate Bayes estimators based on lower record values for ... -
Pathos degree prime graph of a tree
(Işık University Press, 2023-01)Let T be a tree of order n (n ? 2). A pathos degree prime graph of T, written PDP(T), is a graph whose vertices are the vertices and paths of a pathos of T, with two vertices of PDP(T) adjacent whenever the degree of the ... -
Certain subclasses of analytic function by S?l?gean q-differential operator
(Işık University Press, 2023-01)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 ... -
Some fixed point results for ?-admissible multi-valued F-contractions
(Işık University Press, 2023-01)In the present paper, we prove some fixed point results for ?- admissible multi-valued F- contractions on metric spaces. This type of contraction is a generalization of some multi-valued contractions including Nedler’s and ... -
On solution of BG?Volterra integral equations
(Işık University Press, 2023-01)In this study, we center upon obtaining the solution of linear bigeometric Volterra integral equations of the second kind in the sense of bigeometric calculus. The method of successive substitutions and resolvent kernel ... -
K-product cordial labeling of fan graphs
(Işık University Press, 2023-01)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) ? ... -
Local distance irregular labeling of graphs
(Işık University Press, 2023-01)We introduce the notion of distance irregular labeling, called the local distance irregular labeling. We define ? : V (G) ?? {1, 2, . . . , k} such that the weight calculated at the vertices induces a vertex coloring if ... -
Solving existence problems via F-contraction in modified b-metric spaces
(Işık University Press, 2022)In this paper, we introduce a new abstract structure, expanded b-metric, as an natural extension of b-metric. We also define basic topological notions in expanded bmetric to able to investigate the existence of fixed point ... -
A two phase age dependent and two-mutation stochastic model of carcinogenesis
(Işık University Press, 2022)An age dependent and two-mutation stochastic model of carcinogenesis is formulated and studied. In this model, we introduce a fitness age T, (a positive constant) for each cell to divide into two cells. A normal cell if ...
