مرور Volume 12, Issue 2 بر اساس تاریخ انتشار
در حال نمایش موارد 1  20 از 40

Generalizations of Banach's contraction principle and Kannan and Chatterjea's theorems for cyclic and noncyclic mappings
(20230501)Two interesting extensions of Banach contraction principle to mappings that don't to be continuous, are Kannan and Chatterjea's theorems. Before this, in the cyclical form, extensions of these two theorems and ...

Twosided sgutmajorization and its linear preservers
(20230501)Let $\textbf{M}_{n,m}$ be the set of all $n$by$m$ real matrices, and let $\mathbb{R}^{n}$ be the set of all $n$by$1$ real vectors. An $n$by$m$ matrix $R=[r_{ij}]$ is called grow substochastic if $\sum_{k=1}^{m} ...

Jensen’s inequality and tgsconvex functions with applications
(20230501)In recent years, many researches have been done on the tgsconvex functions and their applications. In this article, we present some properties of the tgsconvex functions by interesting examples. Then we investigate the ...

Analytic Univalent fucntions defined by Gegenbauer polynomials
(20230501)The numerical tools that have outshinning many others in the history of Geometric Function Theory (GFT) are the Chebyshev and Gegenbauer polynomials in the present time. Recently, Gegenbauer polynomials have been used to ...

Periodic oscillation for a class delayed economic model
(20230501)A five coupled KaldorKalecki economic model with one delay appeared in the literature, in which the periodic solution of the model was verified by numerical analysis. The periodic solution is an important characteristic ...

Quantitative and stability study of the evolution of a viscoelastic body
(20230501)This paper deals with a generalization of the model describing the evolution of a linear viscoelastic body studied by Kirane M. and B.S. Houari in 2011. We prove the existence and uniqueness of the solution of the model ...

On the existence of subspacediskcyclic $C_{0}$semigroups and some criteria
(20230501)In this paper, we prove the existance of subspacediskcyclic $C_{0}$semigroups on any infinitedimensional separable Banach space. We state that diskcyclic $C_{0}$semigroups are subspacediskcyclic. Also, we establish ...

Pair difference cordial labeling of some star related graphs
(20230501)In this paper, we investigate the pair difference cordial labeling behaviour of some star related graphs.

Automatic continuity of multiplicative polynomial operators
(20230501)This paper deals with the automatic continuity of multiplicative polynomial operators on a class of topological algebras. Several results are derived in this direction. We also support our results by some examples.

Ant colony optimization with fuzzybased ensemble of heuristics for ensemble feature selection
(20230501)One of the crucial stages in machine learning in highdimensional datasets is feature selection. Unrelated features weaknesses the efficiency of the model. However, merging several feature selection strategies is routine ...

On timelike hypersurfaces of the Minkowski 4space with 1proper second mean curvature vector
(20230501)The mean curvature vector field of a submanifold in the Euclidean $n$space is said to be $proper$ if it is an eigenvector of the Laplace operator $\Delta$. It is proven that every hypersurface with proper mean curvature ...

On Rees Factor $\mathbf{S}$Posets Satisfying Conditions $\mathbf{(PWP_{E})}$ or $\mathbf{(PWP_E)_{w}}$
(20230501)Golchin and Rezaei introduced conditions $(PWP)$ and\linebreak $(PWP)_{w}$ in (Subpullbacks and flatness properties of $S$posets). In this paper, we introduce conditions $(PWP_{E})$ and $(PWP_{E})_{w}$ as generalizations ...

On multiplication $fs$modules and dimension symmetry
(20230501)In this paper, we first study $fs$modules, i.e., modules with finitely many small submodules. We show that every $fs$module with finite hollow dimension is Noetherian. Also, we prove that an $R$module $M$ with finite ...

A note on sum formulas $\sum_{k=0}^{n}kx^{k}W_{k}$ and $\sum_{k=1}^{n}kx^{k}W_{k}$ of generalized Hexanacci numbers
(20230501)In this paper, closed forms of the sum formulas $ \sum_{k=0}^{n}kx^{k}W_{k} $ and $ \sum_{k=1}^{n} kx^{k}W_{ k} $ for generalized Hexanacci numbers are presented. As special cases, we give summation formulas of Hexanacci, ...

A mathematical model of a diphtheria outbreak in Rohingya settlement in Bangladesh
(20230501)In this paper, we study the dynamics of the diphtheria outbreak among the immunocompromised group of people, the Rohingya ethnic group. Approximately 800,000 Rohingya refugees are living in the Balukhali refugee camp in ...

Reproducing kernel method for solving partial twodimensional nonlinear fractional Volterra integral equation
(20230501)This article discusses the replicating kernel interpolation collocation method related to Jacobi polynomials to solve a class of fractional system of equations. The reproducing kernel function that is executed as an (RKM) ...

A Subclass of biunivalent functions by Tremblay differential operator satisfying subordinate conditions
(20230501)In this paper, we introduce a newly defined subclass $\mathcal{S}_{\Sigma}(\vartheta,\gamma,\eta;\varphi) $ of biunivalent functions by using the Tremblay differential operator satisfying subordinate conditions in the ...

Gorenstein $n$weak injective and Gorenstein $n$weak flat modules under excellent extensions
(20230501)Let $R$ be an associative ring and let $n$ be a nonnegative integer. In this paper, we consider $n$super finitely presented, Gorenstein $n$weak injective and Gorenstein $n$weak flat modules under change of rings. ...

The Truncated Lomaxexponential distribution and its fitting to financial data
(20230501)Nowadays, analyzing the losses data of the insurance and asset portfolios has special importance in risk analysis and economic problems. Therefore, having suitable distributions that are able to fit such data, is important. ...

On skew power series over McCoy rings
(20230501)Let $R$ be a ring with an endomorphism $\alpha$. A ring $R$ is a skew power series McCoy ring if whenever any nonzero power series $f(x)=\sum_{i=0}^{\infty}a_ix^i,g(x)=\sum_{j=0}^{\infty}b_jx^j\in R[[x;\alpha]]$ satisfy ...