Zobrazeno 1 - 10
of 724
pro vyhledávání: '"Ye, ChangQing"'
In this paper, we develop the constraint energy minimizing generalized multiscale finite element method (CEM-GMsFEM) for convection-diffusion equations with inhomogeneous Dirichlet, Neumann and Robin boundary conditions, along with high-contrast coef
Externí odkaz:
http://arxiv.org/abs/2408.00304
The mathematical formulation of sign-changing problems involves a linear second-order partial differential equation in the divergence form, where the coefficient can assume positive and negative values in different subdomains. These problems find the
Externí odkaz:
http://arxiv.org/abs/2407.17130
In this paper, we provide the constraint energy minimization generalized multiscale finite element method (CEM-GMsFEM) to solve Helmholtz equations in heterogeneous medium. This novel multiscale method is specifically designed to overcome problems re
Externí odkaz:
http://arxiv.org/abs/2407.04364
Autor:
Ye, Changqing, Liu, Beige, Cao, Zhe, Han, Lingzhi, Huang, Xinming, Jiang, Min, Liu, Dong, Lin, Qing, Wan, Shitian, Wu, Yusheng, Zhao, Lei, Zhang, Yue, Peng, Xinhua, Zhao, Zhengguo
The investigation of beyond-Standard-Model particles is a compelling direction in the pursuit of new physics. One such hypothetical particle, the magnetic monopole, has garnered considerable attention due to its strong theoretical motivation and pote
Externí odkaz:
http://arxiv.org/abs/2406.12379
This work presents an Iterative Constraint Energy Minimizing Generalized Multiscale Finite Element Method (ICEM-GMsFEM) for solving the contact problem with high contrast coefficients. The model problem can be characterized by a variational inequalit
Externí odkaz:
http://arxiv.org/abs/2406.02909
Predicting effective thermal conductivity by solving a Partial Differential Equation (PDE) defined on a high-resolution Representative Volume Element (RVE) is a computationally intensive task. In this paper, we tackle the task by proposing an efficie
Externí odkaz:
http://arxiv.org/abs/2404.02433
In this article, a two-level overlapping domain decomposition preconditioner is developed for solving linear algebraic systems obtained from simulating Darcy flow in high-contrast media. Our preconditioner starts at a mixed finite element method for
Externí odkaz:
http://arxiv.org/abs/2403.19356
In this paper, we develop a multigrid preconditioner to solve Darcy flow in highly heterogeneous porous media. The key component of the preconditioner is to construct a sequence of nested subspaces $W_{\mathcal{L}}\subset W_{\mathcal{L}-1}\subset\cdo
Externí odkaz:
http://arxiv.org/abs/2403.19342
In this work we propose a phase field model based on a Caginalp system with mechanical effects to study the underlying physical and chemical processes behind stereolithography, which is an additive manufacturing (3D printing) technique that builds ob
Externí odkaz:
http://arxiv.org/abs/2403.17434
Autor:
Zhang, Jianwei, Zhang, Chengmin, Li, Di, Yang, Wuming, Cui, Xianghan, Ye, ChangQing, Wang, Dehua, Yang, Yiyan, Bi, Shaolan, Zhang, Xianfei
Recently, CHIME/FRB project published its first fast radio burst (FRB) catalog (hereafter, Catalog 1), which totally contains 536 unique bursts. With the help of the latest set of FRBs in this large-size catalog, we aim to investigate the dispersion
Externí odkaz:
http://arxiv.org/abs/2212.13148