Computational & Applied Mathematics最新文献_第2页

Global stability of novel coronavirus model using fractional derivative 基于分数阶导数的新型冠状病毒模型的全局稳定性

3区数学

Computational & Applied Mathematics Pub Date : 2023-10-30 DOI: 10.1007/s40314-023-02413-8

Preety Kumari, Harendra Pal Singh, Swarn Singh

引用次数: 0

Global sensitivity analysis for mathematical models comparison 数学模型比较的全局敏感性分析

3区数学

Computational & Applied Mathematics Pub Date : 2023-10-29 DOI: 10.1007/s40314-023-02484-7

André Jacomel Torii, Riccelli Begnini, Henrique Machado Kroetz, Omar Mohamad Ismail Matar, Rafael Holdorf Lopez, Leandro Fleck Fadel Miguel

引用次数: 0

Near semihypergroups on nearness approximation spaces 逼近逼近空间上的近半超群

3区数学

Computational & Applied Mathematics Pub Date : 2023-10-28 DOI: 10.1007/s40314-023-02488-3

M. Mostafavi, B. Davvaz

引用次数: 0

Generalized bilateral inverses of tensors via Einstein product with applications to singular tensor equations 广义双侧张量的爱因斯坦积逆及其在奇异张量方程中的应用

3区数学

Computational & Applied Mathematics Pub Date : 2023-10-26 DOI: 10.1007/s40314-023-02483-8

Ehsan Kheirandish, Abbas Salemi

引用次数: 1

Dynamics analysis of delayed fuzzy Clifford-valued model: a case of Equi-Weyl almost periodic environment 时滞模糊clifford值模型的动力学分析——以Equi-Weyl几乎周期环境为例

3区数学

Computational & Applied Mathematics Pub Date : 2023-10-24 DOI: 10.1007/s40314-023-02470-z

Mohssine Es-saiydy, Mohamed Zitane

引用次数: 0

Dynamics of the discrete-time Rosenzweig-MacArthur predator–prey system in the closed positively invariant set 闭正不变集中离散时间Rosenzweig-MacArthur捕食-食饵系统动力学

3区数学

Computational & Applied Mathematics Pub Date : 2023-10-24 DOI: 10.1007/s40314-023-02481-w

E. Bešo, S. Kalabušić, E. Pilav

引用次数: 0

Mathematical modelling of HIV-1 transcription inhibition: a comparative study between optimal control and impulsive approach HIV-1转录抑制的数学模型:最优控制与脉冲方法的比较研究

3区数学

Computational & Applied Mathematics Pub Date : 2023-10-24 DOI: 10.1007/s40314-023-02473-w

Srijita Mondal, Tanushree Murmu, Koyel Chakravarty, Ashis Kumar Sarkar, Sourav Kumar Sasmal

引用次数: 0

Multidimension: a dimensionality extension of simple games 多维:简单游戏的维度扩展

3区数学

Computational & Applied Mathematics Pub Date : 2023-10-20 DOI: 10.1007/s40314-023-02471-y

Xavier Molinero, Fabián Riquelme, Salvador Roura, Maria Serna

{"title":"Multidimension: a dimensionality extension of simple games","authors":"Xavier Molinero, Fabián Riquelme, Salvador Roura, Maria Serna","doi":"10.1007/s40314-023-02471-y","DOIUrl":"https://doi.org/10.1007/s40314-023-02471-y","url":null,"abstract":"Abstract In voting theory and social choice theory, decision systems can be represented as simple games, i.e., cooperative games defined through their players or voters and their set of winning coalitions. The weighted voting games form a well-known strict subclass of simple games, where each player has a voting weight so that a coalition wins if the sum of weights of their members exceeds a given quota. Since the number of winning coalitions can be exponential in the number of players, simple games can be represented much more compactly as intersections or unions of weighted voting games. A simple game’s dimension (codimension) is the minimum number of weighted voting games such that their intersection (union) is the given game. It is known there are voting systems with a high (co)dimension. This work introduces the multidimension as the minimum size of an expression with intersections and unions on weighted voting games necessary to obtain the considered simple game. We generalize this notion to subclasses of weighted voting games and analyze the generative properties of these subclasses. We also characterize the simple games with finite generalized multidimension over the set of weighted voting games without dummy players. We provide a comprehensive classification for simple games up to a certain number of players. These results complement similar classification results for generalized (co)dimensions. Our results show how generalized multidimension allows representing more simple games and more compactly, even for a small number of players and for subclasses.","PeriodicalId":50649,"journal":{"name":"Computational & Applied Mathematics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135568187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-order spectral collocation method using tempered fractional Sturm–Liouville eigenproblems 基于调质分数Sturm-Liouville特征问题的高阶谱配置方法

3区数学

Computational & Applied Mathematics Pub Date : 2023-10-19 DOI: 10.1007/s40314-023-02475-8

Sayed A. Dahy, H. M. El-Hawary, Alaa Fahim, Tarek Aboelenen

{"title":"High-order spectral collocation method using tempered fractional Sturm–Liouville eigenproblems","authors":"Sayed A. Dahy, H. M. El-Hawary, Alaa Fahim, Tarek Aboelenen","doi":"10.1007/s40314-023-02475-8","DOIUrl":"https://doi.org/10.1007/s40314-023-02475-8","url":null,"abstract":"Abstract This paper presents an accurate exponential tempered fractional spectral collocation method (TFSCM) to solve one-dimensional and time-dependent tempered fractional partial differential equations (TFPDEs). We use a family of tempered fractional Sturm–Liouville eigenproblems (TFSLP) as a basis and the fractional Lagrange interpolants (FLIs) that generally satisfy the Kronecker delta (KD) function at the employed collocation points. Firstly, we drive the corresponding tempered fractional differentiation matrices (TFDMs). Then, we treat with various linear and nonlinear TFPDEs, among them, the space-tempered fractional advection and diffusion problem, the time-space tempered fractional advection–diffusion problem (TFADP), the multi-term time-space tempered fractional problems, and the time-space tempered fractional Burgers’ equation (TFBE) to investigate the numerical capability of the fractional collocation method. The study includes a numerical examination of the produced condition number $$kappa (A)$$ <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"> <mml:mrow> <mml:mi>κ</mml:mi> <mml:mo>(</mml:mo> <mml:mi>A</mml:mi> <mml:mo>)</mml:mo> </mml:mrow> </mml:math> of the linear systems. The accuracy and efficiency of the proposed method are studied from the standpoint of the $$L^infty $$ <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"> <mml:msup> <mml:mi>L</mml:mi> <mml:mi>∞</mml:mi> </mml:msup> </mml:math> -norm error and exponential rate of spectral convergence.","PeriodicalId":50649,"journal":{"name":"Computational & Applied Mathematics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135730021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cluster soft sets and cluster soft topologies 集群软集和集群软拓扑

3区数学

Computational & Applied Mathematics Pub Date : 2023-10-18 DOI: 10.1007/s40314-023-02476-7

Zanyar A. Ameen, Samer Al Ghour

引用次数: 3