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East Asian Journal on Applied Mathematics最新文献

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Adaptive High-Order A-WENO Schemes Based on a New Local Smoothness Indicator 基于一种新的局部平滑指标的自适应高阶a - weno方案
4区 数学
East Asian Journal on Applied Mathematics Pub Date : 2023-06-01 DOI: 10.4208/eajam.2022-313.160123
Alina Chertock, Shaoshuai Chu and Alexander Kurganov
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引用次数: 0
A Mixed-Type Circulant Preconditioner for a Nonlocal Elastic Model 非局部弹性模型的混合型循环预调节器
IF 1.2 4区 数学
East Asian Journal on Applied Mathematics Pub Date : 2023-05-01 DOI: 10.4208/eajam.2021-275.210722
Yuan Lei
{"title":"A Mixed-Type Circulant Preconditioner for a Nonlocal Elastic Model","authors":"Yuan Lei","doi":"10.4208/eajam.2021-275.210722","DOIUrl":"https://doi.org/10.4208/eajam.2021-275.210722","url":null,"abstract":"","PeriodicalId":48932,"journal":{"name":"East Asian Journal on Applied Mathematics","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42727920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
A New Class of Efficient SAV Schemes with Lagrange Multipliers for Dissipative Systems with Global Constraints 全局约束耗散系统的一类新的拉格朗日乘子有效SAV格式
IF 1.2 4区 数学
East Asian Journal on Applied Mathematics Pub Date : 2023-04-01 DOI: 10.4208/eajam.2022-307.090123
Yan Shen
{"title":"A New Class of Efficient SAV Schemes with Lagrange Multipliers for Dissipative Systems with Global Constraints","authors":"Yan Shen","doi":"10.4208/eajam.2022-307.090123","DOIUrl":"https://doi.org/10.4208/eajam.2022-307.090123","url":null,"abstract":"","PeriodicalId":48932,"journal":{"name":"East Asian Journal on Applied Mathematics","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41815728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Stability of Spectral Collocation Schemes with Explicit-Implicit-Null Time-Marching for Convection-Diffusion and Convection-Dispersion Equations 对流-扩散和对流-色散方程的显式-隐式-零时间推进谱配置方案的稳定性
IF 1.2 4区 数学
East Asian Journal on Applied Mathematics Pub Date : 2023-04-01 DOI: 10.4208/eajam.2022-271.090123
M. Tan, Juan Cheng, Chi-Wang Shu
{"title":"Stability of Spectral Collocation Schemes with Explicit-Implicit-Null Time-Marching for Convection-Diffusion and Convection-Dispersion Equations","authors":"M. Tan, Juan Cheng, Chi-Wang Shu","doi":"10.4208/eajam.2022-271.090123","DOIUrl":"https://doi.org/10.4208/eajam.2022-271.090123","url":null,"abstract":"In this paper, we discuss the Fourier collocation and Chebyshev collocation schemes coupled with two specific high order explicit-implicit-null (EIN) time-marching methods for solving the convection-diffusion and convection-dispersion equations. The basic idea of the EIN method discussed in this paper is to add and subtract an appropriate large linear highest derivative term on one side of the considered equation, and then apply the implicit-explicit time-marching method to the equivalent equation. The EIN method so designed does not need any nonlinear iterative solver, and the severe time step restriction for explicit methods can be removed. We give stability analysis for the proposed EIN Fourier collocation schemes on simplified linear equations by the aid of the Fourier method. We show rigorously that the resulting schemes are stable with particular emphasis on the use of large time steps if appropriate stabilization parameters are chosen. Even though the analysis is only performed on the EIN Fourier collocation schemes, numerical results show that the stability criteria can also be extended to the EIN Chebyshev collocation schemes. Numerical experiments are given to demonstrate the stability, accuracy and performance of the EIN schemes for both one-dimensional and two-dimensional linear and nonlinear equations.","PeriodicalId":48932,"journal":{"name":"East Asian Journal on Applied Mathematics","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42435887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 Difference Gas-Kinetic Schemes for Euler and Navier-Stokes Equations Euler和Navier-Stokes方程的高阶谱差气体动力学格式
IF 1.2 4区 数学
East Asian Journal on Applied Mathematics Pub Date : 2023-04-01 DOI: 10.4208/eajam.2022-257.041222
Qing Xie, X. Ji, Z. Qiu, Chun Xu
{"title":"High-Order Spectral Difference Gas-Kinetic Schemes for Euler and Navier-Stokes Equations","authors":"Qing Xie, X. Ji, Z. Qiu, Chun Xu","doi":"10.4208/eajam.2022-257.041222","DOIUrl":"https://doi.org/10.4208/eajam.2022-257.041222","url":null,"abstract":"","PeriodicalId":48932,"journal":{"name":"East Asian Journal on Applied Mathematics","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42540267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
A Hybrid Method for Three-Dimensional Semi-Linear Elliptic Equations 三维半线性椭圆方程的一种混合方法
IF 1.2 4区 数学
East Asian Journal on Applied Mathematics Pub Date : 2023-03-01 DOI: 10.4208/eajam.2022-264.091122
Jianguo Huang, Sheng Wang
{"title":"A Hybrid Method for Three-Dimensional Semi-Linear Elliptic Equations","authors":"Jianguo Huang, Sheng Wang","doi":"10.4208/eajam.2022-264.091122","DOIUrl":"https://doi.org/10.4208/eajam.2022-264.091122","url":null,"abstract":"","PeriodicalId":48932,"journal":{"name":"East Asian Journal on Applied Mathematics","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42296039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
A Linearized Structure-Preserving Numerical Scheme for a Gradient Flow Model of the Kohn-Sham Density Functional Theory Kohn-Sham密度泛函理论梯度流模型的线性化保结构数值格式
IF 1.2 4区 数学
East Asian Journal on Applied Mathematics Pub Date : 2023-03-01 DOI: 10.4208/eajam.2022-134.081022
G. Hu, Ting Zhou
{"title":"A Linearized Structure-Preserving Numerical Scheme for a Gradient Flow Model of the Kohn-Sham Density Functional Theory","authors":"G. Hu, Ting Zhou","doi":"10.4208/eajam.2022-134.081022","DOIUrl":"https://doi.org/10.4208/eajam.2022-134.081022","url":null,"abstract":"","PeriodicalId":48932,"journal":{"name":"East Asian Journal on Applied Mathematics","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45454885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 2
Stability and Convergence of Stabilized Finite Volume Iterative Methods for Steady Incompressible MHD Flows with Different Viscosities 不同粘性稳定不可压缩MHD流稳定有限体积迭代方法的稳定性和收敛性
IF 1.2 4区 数学
East Asian Journal on Applied Mathematics Pub Date : 2023-03-01 DOI: 10.4208/eajam.2022-204.241022
X. Chu, Chuan Zhang
{"title":"Stability and Convergence of Stabilized Finite Volume Iterative Methods for Steady Incompressible MHD Flows with Different Viscosities","authors":"X. Chu, Chuan Zhang","doi":"10.4208/eajam.2022-204.241022","DOIUrl":"https://doi.org/10.4208/eajam.2022-204.241022","url":null,"abstract":"","PeriodicalId":48932,"journal":{"name":"East Asian Journal on Applied Mathematics","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44699425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
An Adaptive Non-Intrusive Multi-Fidelity Reduced Basis Method for Parameterized Partial Differential Equations 参数化偏微分方程的自适应非侵入多保真度降基方法
IF 1.2 4区 数学
East Asian Journal on Applied Mathematics Pub Date : 2023-03-01 DOI: 10.4208/eajam.2022-244.241022
Yuanhong Chen, xiangmin Sun, Yifan Lin and Zhen Gao
{"title":"An Adaptive Non-Intrusive Multi-Fidelity Reduced Basis Method for Parameterized Partial Differential Equations","authors":"Yuanhong Chen, xiangmin Sun, Yifan Lin and Zhen Gao","doi":"10.4208/eajam.2022-244.241022","DOIUrl":"https://doi.org/10.4208/eajam.2022-244.241022","url":null,"abstract":"","PeriodicalId":48932,"journal":{"name":"East Asian Journal on Applied Mathematics","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42142258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Convergence of Extrapolated Dynamic String-Averaging Cutter Methods and Applications 外推动态弦平均切割器方法的收敛性及其应用
IF 1.2 4区 数学
East Asian Journal on Applied Mathematics Pub Date : 2023-02-01 DOI: 10.4208/eajam.2022-177.220922
Nguyễn Dương Nguyễn
{"title":"Convergence of Extrapolated Dynamic String-Averaging Cutter Methods and Applications","authors":"Nguyễn Dương Nguyễn","doi":"10.4208/eajam.2022-177.220922","DOIUrl":"https://doi.org/10.4208/eajam.2022-177.220922","url":null,"abstract":"","PeriodicalId":48932,"journal":{"name":"East Asian Journal on Applied Mathematics","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45278589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
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