Matematik-Makale Koleksiyonu: Recent submissions
Now showing items 101-120 of 507
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Asymptotically good towers of function fields with small p-rank
(Academic Press Inc Elsevier Science, 2021)Over any quadratic finite field we construct function fields of large genus that have simultaneously many rational places, small p-rank, and many automorphisms. -
Forecasting of the Istanbul Stock Exchange (ISE) return with a golden ratio model in the epidemic of Covid-19
(Ministry Communications & High Technologies Republic Azerbai, 2021)A novel coronavirus called COVID-19 has spread rapidly all over the world in the recent days. This virus, which has become a global problem, has deeply affected the stock markets. This paper aims to present a new model ... -
Discontinuous convex contractions and their applications in neural networks
(Springer Heidelberg, 2021)In this paper, we show that the class of convex contractions of order m ∈ N is strong enough to generate a fixed point but do not force the mapping to be continuous at the fixed point. As a by-product, we provide a new ... -
A fractional model of cancer-immune system with Caputo and Caputo-Fabrizio derivatives
(Springer Heidelberg, 2021)Recently, it is important to try to understand diseases with large mortality rates worldwide, such as infectious disease and cancer. For this reason, mathematical modeling can be used to comment on diseases that adversely ... -
On the Betti numbers of the tangent cones for Gorenstein monomial curves
(Scientific Technical Research Council Turkey-Tubitak, 2021)The aim of the article is to study the Betti numbers of the tangent cone of Gorenstein monomial curves in affine 4-space. If CS is a noncomplete intersection Gorenstein monomial curve whose tangent cone is Cohen–Macaulay, we ... -
Approximation by rational functions on doubly connected domains in weighted generalized grand Smirnov classes
(Springer, 2021)Let G subset of C be a doubly connected domain bounded by two rectifiable Carleson curves. We use the higher modulus of smoothness in order to investigate the approximation properties of (p - epsilon)-Faber-Laurent rational ... -
Investigation of e-cigarette smoking model with mittag-leffler kernel
(Walter De Gruyter GMBH, 2021)Smoking is the most lethal social poisoning event. The World HealthOrganization defines smoking as the most important preventable cause of disease.Around 4.9 million people worldwide die from smoking every year. ... -
Approximation theorems in weighted lebesgue spaces with variable exponent
(Univ Nis, 2021)In this work, approximation properties of de la Vallee-Poussin means are investigated in weighted Lebesgue spaces with variable exponent where weight function belongs to Muckenhoupt class. For this purpose direct, inverse ... -
Approximation by matrix transforms in morrey spaces
(Petrozavodsk State Univ, 2021)In this work, approximation properties of matrix transforms constructed via the Fourier and Faber series in the subspaces of Morrey spaces are investigated. -
Temperature profiles and thermal stresses due to heat conduction under fading memory effect
(Springer Heidelberg, 2021)Examining the thermal stresses in thermally loaded materials used in the construction of technological devices is a fundamental problem to determine how functionally durable they are. Therefore, it is noteworthy to analyze ... -
Separable solutions of Cattaneo-Hristov heat diffusion equation in a line segment: Cauchy and source problems
(Elsevier, 2021)The behavior of Cattaneo-Hristov heat diffusion moving in a line segment under the influence of specified initial and source temperatures has been investigated. The Fourier method has been applied to determine the ... -
New discontinuity results at fixed point on metric spaces
(Springer Basel AG, 2021)Recently, the discontinuity problem at a fixed point has been studied by various aspects. In this paper, we investigate new solutions to the discontinuity problem using appropriate contractive conditions which are strong ... -
A fractional SAIDR model in the frame of Atangana-Baleanu derivative
(MDPI, 2021)It is possible to produce mobile phone worms, which are computer viruses with the ability to command the running of cell phones by taking advantage of their flaws, to be transmitted from one device to the other with ... -
A new solution to the Rhoades' open problem with an application
(Sciendo, 2021)We give a new solution to the Rhoades' open problem on the discontinuity at fixed point via the notion of an S-metric. To do this, we develop a new technique by means of the notion of a Zamfirescu mapping. Also, we consider ... -
Existence and uniqueness results for a smoking model with determination and education in the frame of non-singular derivatives
(Amer Inst Mathematical Sciences-AIMS, 2021)These days, it is widely known that smoking causes numerous diseases, as well as resulting in many avoidable losses of life globally, and therefore encumbers the society with enormous unnecessary burdens. The aim of this ... -
Optimal control of the Cattaneo-Hristov heat diffusion model
(Springer Wien, 2021)In this study, the optimal control problem for Cattaneo-Hristov heat diffusion, a partial differential equation including both fractional-order Caputo-Fabrizio and integer-order derivatives, is formulated for a rigid heat ... -
Modeling of Duhem hysteresis with Riemann-Liouville fractional derivative
(Balıkesir Üniversitesi, 2020)In the view of memory effect of hysteresis, this work aims to interpret hysteresis nonlinearities in terms of Riemann-Liouville fractional derivative which is a singular operator with memory and hereditary properties. ... -
New complex-valued activation functions
(Balikesir University, 2020)We present a new type of activation functions for a complex-valued neural network (CVNN). A proposed activation function is constructed such that it fixes a given ellipse. We obtain an application to a complex-valued ... -
Investigating of an immune system-cancer mathematical model with Mittag-Leffler kernel
(Amer Inst Mathematical Sciences-AIMS, 2020)Cancer that is difficult to treat, is a very common disease today and there are many types of cancer such as lung, colon, stomach. When cancer settles in the body, the immune system tries to resist it. In this study, the ... -
Analysis of a basic SEIRA model with Atangana-Baleanu derivative
(Amer Inst Mathematical Sciences-AIMS, 2020)Since computer worms have very acute and negative effects on computer systems, they are considered as one of the malicious bodies that induce serious issues in these structures. This is why numerous efforts have been given ...
