Güncel Gönderiler: FEF, Matematik Bölümü Koleksiyonu
Toplam kayıt 156, listelenen: 21-40
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Congruence relations and direct decomposition of uninorms on bounded lattices
(World Scientific, 2023)In this paper, the concept of U-compatible congruence and its related properties are studied. We also focus on homomorphism theorems for uninorms. Decomposition of uninorms is investigated via factor congruences, at first. ... -
On the image of the lupaş q-analogue of the bernstein operators
(Springer Link, 2023)The Lupaş q-analogue, Rn,q , is historically the first known q-version of the Bernstein operator. It has been studied extensively in different aspects by a number of authors during the last decades. In this work, the ... -
Wong-Zakai approximation for stochastic models of smoking
(Yıldız Technical University, 2023)In this study, Wong-Zakai approximation method has been used to obtain approximate solutions for two compartmental models of smoking dynamics. Stratonovich stochastic differential equation systems are obtained for these ... -
Moment-based approximations for stochastic control model of type (s, S)
(Taylor & Francis Ltd., 2023)In this study, we propose an approximation for a renewal reward process that describes a stochastic control model of type (s, S) based on the first three moments of demand random variables. Various asymptotic expansions ... -
On the eigenstructure of the q -Durrmeyer operators
(TUBITAK, 2023)The purpose of this paper is to establish the eigenvalues and the eigenfunctions of both the q -Durrmeyer operators Dn,q and the limit q -Durrmeyer operators D∞,q introduced by V. Gupta in the case 0 < q < 1. All moments ... -
Modeling disease transmission dynamics with random data and heavy tailed random effects: Rhe zika case
(Isik University, 2023)In this study, we investigate a compartmental model of Zika Virus transmission under random effects. Random effects enable the analysis of random numerical characteristics of transmission, which cannot be modeled through ... -
Hyper dual number matrices
(Maejo University, 2023)We study hyper dual numbers and hyper dual number matrices. Firstly, we give some basic properties of dual numbers and hyper dual numbers. Next, we investigate hyper dual number matrices using the properties of dual number ... -
Dynamics of a plant-herbivore model subject to allee effects with logistic growth of plant biomass
(World Stientific Publishing, 2023)This paper examines the relationship between herbivores and plants with a strong Allee effect. When the plant reaches a particular size, the herbivore attacks it. We use the logistic equation to model plant growth and ... -
Investigation the ergodic distribution of a semi-Markovian inventory model of type (s,S) with intuitive approximation approach
(Ankara Yildirim Beyazit University, 2023)This paper concerns a stochastic process X(t) expressing (s, S) type inventory system with intuitive approximation approach. The ergodic distributions of the process X(t) can be analyzed with the help of the renewal function. ... -
Generalization of intuitionistic fuzzy submodules of a module by using triangular norms and conorms and (T,S)-L subrings
(Springer, 2023)This study consists of two parts. In first part; It is built on the definition of Intuitionistic Fuzzy Submodules of a Module. Many researchers have used the definition of Atanassov’s (Fuzzy Sets Syst 20:87–96, [1]) ... -
Hybrid number matrices
(2023)The aim of this study is to investigate some properties of hybrid number matrices. Firstly, we introduce hybrid numbers with some of their properties. Then we prove that any hybrid number has a 2 x 2 complex matrix ... -
The generalized Marchenko Method in the inverse scattering problem for a first-order linear system with energy-dependent potentials
(2023)The Marchenko method is developed in the inverse scattering problem for a linear system of first-order differential equations containing potentials proportional to the spectral parameter. The corresponding Marchenko system ... -
The Marchenko method to solve the general system of derivative nonlinear Schrodinger equations
(AIP Publishing, 2023)A system of linear integral equations is presented, which is the analog of the system of Marchenko integral equations, to solve the inverse scattering problem for the linear system associated with the DNLS (derivative ... -
Evaluation of the convolution sum ∑al+bm=nσ(l)σ3(m) for (a,b)=(1,7),(7,1),(1,8),(8,1),(1,9),(9,1) and representations by certain quadratic forms in twelve variables
(Springer, 2023)For a positive integer n we evaluate the convolution sum Sigma(al+ bm=n) sigma(l) sigma(3)(m) for (a, b) = (1, 7), (7, 1), (1, 8), (8, 1), (1, 9), (9, 1) . We then use these evaluations together with knownevaluations of ... -
On the injectivity with respect to q of the Lupaş q-transform
(Taylor & Francis Ltd., 2023)The Lupas q-transform has first appeared in the study of the Lupas q-analogue of the Bernstein operator. Given 0 < q < 1 and f is an element of C[0, 1], the Lupas q-transform is defined by Lambda(q)(f; x) Pi(infinity)(k=0) ... -
Determination of the smallest-greatest uni-nullnorms and null-uninorms on an arbitrary bounded lattice L
(World Stientific Publishing, 2023)In this paper, we study uni-nullnorms and null-uninorms on bounded lattices, which are generalizations of uninorms, nullnorms, t-norms and t-conorms. We construct two uni-nullnorms and two null-uninorms on a bounded lattice ... -
Sensitivity analysis and random dynamics for a mathematical model of tuberculosis transmission
(Taylor & Francis Ltd., 2023)In this study, a recent mathematical model for the spread of tuberculosis disease will be analyzed under random conditions. The sensitivity of the basic reproduction number to the changes in the parameters will be analyzed ... -
Comparison of a random model of Hand-Foot-Mouth Disease model with Gaussian and Laplacian parameters
(Gumushane University, 2022)In this study, we investigate the transmission dynamics of Hand-Foot-Mouth disease (HFMD) using a differential equation system with random parameters. We transform the parameters of the existing deterministic model into ... -
Subsethood measure for picture fuzzy sets and its applications on multicriteria decision making
(Gumushane University, 2022)Picture fuzzy set is a direct generalization of intuitionistic fuzzy set and is therefore more capable of dealing with uncertainty while working on real life problems. The concept of inclusion is a subject that is frequently ... -
An existing problem for symmetric design: Bruck Ryser Chowla Theorem
(Sakarya University, 2022)Symetric designs are interesting objects of combinatorics, and have some relations with coding theory, difference sets, geometry and finite group theory. They have applications on statistics and design experiments. In ...
