发布求助
文献互助 智能选刊 最新文献

Calcolo最新文献

筛选
英文 中文
Numerical analysis of nonlinear Volterra integrodifferential equations for viscoelastic rods and plates 粘弹性杆和板的非线性 Volterra 积分微分方程的数值分析
IF 1.7 2区 数学
Calcolo Pub Date : 2024-07-31 DOI: 10.1007/s10092-024-00607-y
Wenlin Qiu, Yiqun Li, Xiangcheng Zheng
{"title":"Numerical analysis of nonlinear Volterra integrodifferential equations for viscoelastic rods and plates","authors":"Wenlin Qiu, Yiqun Li, Xiangcheng Zheng","doi":"10.1007/s10092-024-00607-y","DOIUrl":"https://doi.org/10.1007/s10092-024-00607-y","url":null,"abstract":"<p>This work considers the numerical analysis of nonlinear Volterra integrodifferential equations that arise from, e.g., the theory of isotropic viscoelastic rods and plates. Novel properties of the kernel and its derivatives are derived via the Laplace transform, and the regularity of the solutions is proved. Then we apply the Crank–Nicolson method and the second-order convolution quadrature rule to develop the discrete-in-time scheme, and the energy argument is employed to analyze the stability and convergence of the proposed scheme. Numerical experiments are performed to substantiate the theoretical findings.</p>","PeriodicalId":9522,"journal":{"name":"Calcolo","volume":"49 4 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141870277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Locking-free Argyris–Lagrange finite elements for the Reissner–Mindlin plate 用于 Reissner-Mindlin 板的无锁定 Argyris-Lagrange 有限元
IF 1.7 2区 数学
Calcolo Pub Date : 2024-07-29 DOI: 10.1007/s10092-024-00608-x
Yunqing Huang, Shangyou Zhang
{"title":"Locking-free Argyris–Lagrange finite elements for the Reissner–Mindlin plate","authors":"Yunqing Huang, Shangyou Zhang","doi":"10.1007/s10092-024-00608-x","DOIUrl":"https://doi.org/10.1007/s10092-024-00608-x","url":null,"abstract":"<p>The <span>(C^1)</span>-<span>(P_{k+1})</span> (<span>(kge 4)</span>) Argyris finite elements combined with the <span>(C^0)</span>-<span>(P_k)</span> Lagrange finite elements are locking-free with respect to the plate thickness, and quasi-optimal when solving the Reissner–Mindlin plate equation on triangular meshes. The method is truly conforming or consistent in the sense that no reduction operator is introduced to the formulation. Theoretical proof and numerical verification are presented.</p>","PeriodicalId":9522,"journal":{"name":"Calcolo","volume":"88 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141870279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 efficient computational technique for semilinear time-fractional diffusion equation 半线性时间分数扩散方程的高效计算技术
IF 1.7 2区 数学
Calcolo Pub Date : 2024-07-19 DOI: 10.1007/s10092-024-00604-1
Aniruddha Seal, Srinivasan Natesan
{"title":"An efficient computational technique for semilinear time-fractional diffusion equation","authors":"Aniruddha Seal, Srinivasan Natesan","doi":"10.1007/s10092-024-00604-1","DOIUrl":"https://doi.org/10.1007/s10092-024-00604-1","url":null,"abstract":"<p>In this manuscript, we aim to study the semi-analytical and the numerical solution of a semilinear time-fractional diffusion equation where the time-fractional term includes the combination of tempered fractional derivative and <i>k</i>-Caputo fractional derivative with a parameter <span>(k ge 1)</span>. The application of the new integral transform, namely Elzaki transform of the tempered <i>k</i>-Caputo fractional derivative is shown here and thereafter the semi-analytical solution is obtained by using the Elzaki decomposition method. The model problem is linearized using Newton’s quasilinearization method, and then the quasilinearized problem is discretized by the difference scheme namely tempered <span>(_kL2)</span>-<span>(1_sigma )</span> method. Stability and convergence analysis of the proposed scheme have been discussed in the <span>(L_2)</span>-norm using the energy method. In support of the theoretical results, numerical example has been incorporated.</p>","PeriodicalId":9522,"journal":{"name":"Calcolo","volume":"63 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141740692","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Lower and upper bounds for stokes eigenvalues 斯托克斯特征值的下限和上限
IF 1.7 2区 数学
Calcolo Pub Date : 2024-07-19 DOI: 10.1007/s10092-024-00598-w
Yifan Yue, Hongtao Chen, Shuo Zhang
{"title":"Lower and upper bounds for stokes eigenvalues","authors":"Yifan Yue, Hongtao Chen, Shuo Zhang","doi":"10.1007/s10092-024-00598-w","DOIUrl":"https://doi.org/10.1007/s10092-024-00598-w","url":null,"abstract":"<p>In this paper, we study the lower and upper bounds for Stokes eigenvalues by finite element schemes. For the schemes studied here, roughly speaking, the loss of the local approximation property of the discrete <b>velocity</b> and <b>pressure</b> spaces may lead to different computed bounds of the eigenvalues. Formally theoretical analysis is constructed based on certain mathematical hypotheses, and numerical experiments are given to illustrate the validity of the theory.</p>","PeriodicalId":9522,"journal":{"name":"Calcolo","volume":"25 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141740693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Tchakaloff-like compression of QMC volume and surface integration on the union of balls 在球的结合部对 QMC 体积和曲面积分进行类似于 Tchakaloff 的压缩
IF 1.7 2区 数学
Calcolo Pub Date : 2024-07-12 DOI: 10.1007/s10092-024-00587-z
G. Elefante, A. Sommariva, M. Vianello
{"title":"Tchakaloff-like compression of QMC volume and surface integration on the union of balls","authors":"G. Elefante, A. Sommariva, M. Vianello","doi":"10.1007/s10092-024-00587-z","DOIUrl":"https://doi.org/10.1007/s10092-024-00587-z","url":null,"abstract":"<p>We present an algorithm for Tchakaloff-like compression of quasi-Monte Carlo volume and surface integration on an arbitrary union of balls, via non-negative least squares. We also provide the corresponding Matlab codes together with several numerical tests.</p>","PeriodicalId":9522,"journal":{"name":"Calcolo","volume":"68 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141614609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Hybrid weakly over-penalised symmetric interior penalty method on anisotropic meshes 各向异性网格上的混合弱过度惩罚对称内部惩罚法
IF 1.7 2区 数学
Calcolo Pub Date : 2024-07-09 DOI: 10.1007/s10092-024-00600-5
Hiroki Ishizaka
{"title":"Hybrid weakly over-penalised symmetric interior penalty method on anisotropic meshes","authors":"Hiroki Ishizaka","doi":"10.1007/s10092-024-00600-5","DOIUrl":"https://doi.org/10.1007/s10092-024-00600-5","url":null,"abstract":"<p>In this study, we investigate a hybrid-type anisotropic weakly over-penalised symmetric interior penalty method for the Poisson equation on convex domains. Compared with the well-known hybrid discontinuous Galerkin methods, our approach is simple and easy to implement. Our primary contributions are the proposal of a new scheme and the demonstration of a proof for the consistency term, which allows us to estimate the anisotropic consistency error. The key idea of the proof is to apply the relation between the Raviart–Thomas finite element space and a discontinuous space. In numerical experiments, we compare the calculation results for standard and anisotropic mesh partitions.</p>","PeriodicalId":9522,"journal":{"name":"Calcolo","volume":"11 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141569609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Finite volume scheme and renormalized solutions for nonlinear elliptic Neumann problem with $$L^1$$ data 具有 $L^1$$ 数据的非线性椭圆 Neumann 问题的有限体积方案和重规范化解
IF 1.7 2区 数学
Calcolo Pub Date : 2024-07-06 DOI: 10.1007/s10092-024-00602-3
Mirella Aoun, Olivier Guibé
{"title":"Finite volume scheme and renormalized solutions for nonlinear elliptic Neumann problem with $$L^1$$ data","authors":"Mirella Aoun, Olivier Guibé","doi":"10.1007/s10092-024-00602-3","DOIUrl":"https://doi.org/10.1007/s10092-024-00602-3","url":null,"abstract":"<p>In this paper we study the convergence of a finite volume approximation of a convective diffusive elliptic problem with Neumann boundary conditions and <span>(L^1)</span> data. To deal with the non-coercive character of the equation and the low regularity of the right hand-side we mix the finite volume tools and the renormalized techniques. To handle the Neumann boundary conditions we choose solutions having a null median and we prove a convergence result. We present also some numerical experiments in dimension 2 to illustrate the rate of convergence.</p>","PeriodicalId":9522,"journal":{"name":"Calcolo","volume":"19 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141569610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 randomized block Douglas–Rachford method for solving linear matrix equation 解决线性矩阵方程的随机分块道格拉斯-拉赫福德方法
IF 1.7 2区 数学
Calcolo Pub Date : 2024-07-06 DOI: 10.1007/s10092-024-00599-9
Baohua Huang, Xiaofei Peng
{"title":"A randomized block Douglas–Rachford method for solving linear matrix equation","authors":"Baohua Huang, Xiaofei Peng","doi":"10.1007/s10092-024-00599-9","DOIUrl":"https://doi.org/10.1007/s10092-024-00599-9","url":null,"abstract":"<p>The Douglas-Rachford method (DR) is one of the most computationally efficient iterative methods for the large scale linear systems of equations. Based on the randomized alternating reflection and relaxation strategy, we propose a randomized block Douglas–Rachford method for solving the matrix equation <span>(AXB=C)</span>. The Polyak’s and Nesterov-type momentums are integrated into the randomized block Douglas–Rachford method to improve the convergence behaviour. The linear convergence of the resulting algorithms are proven. Numerical simulations and experiments of randomly generated data, real-world sparse data, image restoration problem and tensor product surface fitting in computer-aided geometry design are performed to illustrate the feasibility and efficiency of the proposed methods.</p>","PeriodicalId":9522,"journal":{"name":"Calcolo","volume":"38 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141577511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Transpose-free quasi-minimal residual method based on tensor format for generalized coupled sylvester tensor equations 基于广义耦合西尔维斯特张量方程张量格式的无移位准最小残差法
IF 1.7 2区 数学
Calcolo Pub Date : 2024-06-25 DOI: 10.1007/s10092-024-00592-2
Mohammad Mahdi Izadkhah
{"title":"Transpose-free quasi-minimal residual method based on tensor format for generalized coupled sylvester tensor equations","authors":"Mohammad Mahdi Izadkhah","doi":"10.1007/s10092-024-00592-2","DOIUrl":"https://doi.org/10.1007/s10092-024-00592-2","url":null,"abstract":"<p>This paper presents an extension of the transpose-free quasi-minimal residual (TFQMR) method for solving the generalized coupled Sylvester tensor equations. The new algorithm is based on the tensor format of the TFQMR process. We analyze the convergence behavior of this method and present a bound for the residual norm of the method depending on the specific parameter computed by the algorithm. The numerical experiments demonstrate the efficiency of the new method and confirm the theoretical results.</p>","PeriodicalId":9522,"journal":{"name":"Calcolo","volume":"8 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141500847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 analysis of linear fractional neutral delay differential equations 线性分数中性延迟微分方程的稳定性分析
IF 1.7 2区 数学
Calcolo Pub Date : 2024-06-24 DOI: 10.1007/s10092-024-00595-z
Jingjun Zhao, Xingchi Wang, Yang Xu
{"title":"Stability analysis of linear fractional neutral delay differential equations","authors":"Jingjun Zhao, Xingchi Wang, Yang Xu","doi":"10.1007/s10092-024-00595-z","DOIUrl":"https://doi.org/10.1007/s10092-024-00595-z","url":null,"abstract":"<p>This paper investigates the analytical stability region and the asymptotic stability of linear fractional neutral delay differential equations. Employing boundary locus techniques, the stability region of this problem is analyzed. Furthermore, we derive the fundamental solution of linear fractional neutral delay differential equations, and prove the exponential boundedness, the asymptotic stability and the algebraic decay rate. Finally, numerical tests are conducted to verify the theoretical results.</p>","PeriodicalId":9522,"journal":{"name":"Calcolo","volume":"32 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141500848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信