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In this study, we present the bicubic Hermite element method (BHEM), a new computational framework devised for the elastodynamic simulation of parametric thin-shell structures. The BHEM is constructed based on parametric quadrilateral…

图形学 · 计算机科学 2025-03-28 Xingyu Ni , Xuwen Chen , Cheng Yu , Bin Wang , Baoquan Chen

This work proposes and analyzes a generalized acceleration technique for decreasing the computational complexity of using stochastic collocation (SC) methods to solve partial differential equations (PDEs) with random input data. The SC…

数值分析 · 数学 2015-05-05 Diego Galindo , Peter Jantsch , Clayton G. Webster , Guannan Zhang

Numerical methods for solving the ideal magnetohydrodynamic (MHD) equations in more than one space dimension must either confront the challenge of controlling errors in the discrete divergence of the magnetic field, or else be faced with…

数值分析 · 数学 2015-05-19 Christiane Helzel , James A. Rossmanith , Bertram Taetz

There has been an arising trend of adopting deep learning methods to study partial differential equations (PDEs). This article is to propose a Deep Learning Galerkin Method (DGM) for the closed-loop geothermal system, which is a new coupled…

数值分析 · 数学 2022-04-19 Wen Zhang , Jian Li

A high-order convergent numerical method for solving linear and non-linear parabolic PDEs is presented. The time-stepping is done via an explicit, singly diagonally implicit Runge-Kutta (ESDIRK) method of order 4 or 5, and for the implicit…

数值分析 · 数学 2018-11-13 Tracy Babb , Per-Gunnar Martinsson , Daniel Appelo

This paper presents in detail our fast semistochastic heat-bath configuration interaction (SHCI) method for solving the many-body Schrodinger equation. We identify and eliminate computational bottlenecks in both the variational and…

化学物理 · 物理学 2019-01-14 Junhao Li , Matt Otten , Adam A Holmes , Sandeep Sharma , Cyrus J. Umrigar

In this paper, an implicit time stepping meshless scheme is proposed to find the numerical solution of high-dimensional sine-Gordon equations (SGEs) by combining the high dimensional model representation (HDMR) and the Fourier hyperbolic…

数值分析 · 数学 2019-10-15 Xin Xu , Xiaopeng Luo , Herschel Rabitz

Density matrix embedding theory (DMET) is a powerful quantum embedding method for solving strongly correlated quantum systems. Theoretically, the performance of a quantum embedding method should be limited by the computational cost of the…

计算物理 · 物理学 2020-08-19 Xiaojie Wu , Michael Lindsey , Tiangang Zhou , Yu Tong , Lin Lin

Electron heat conduction is one of the ways that energy transports in laser heating of fusible target material. The aim of Inertial Confinement Fusion (ICF) is to show that the thermal conductivity is strongly dependent on temperature and…

等离子体物理 · 物理学 2011-11-24 A. Mohammadian Pourtalari , M. A. Jafarizadeh , M. Ghoranneviss

Numerical homogenization aims to efficiently and accurately approximate the solution space of an elliptic partial differential operator with arbitrarily rough coefficients in a $d$-dimensional domain. The application of the inverse operator…

数值分析 · 数学 2022-11-24 Moritz Hauck , Daniel Peterseim

We consider the design of structure-preserving discretization methods for the solution of systems of boundary controlled Partial Differential Equations (PDEs) thanks to the port-Hamiltonian formalism. We first provide a novel general…

数值分析 · 数学 2020-09-30 Andrea Brugnoli , Ghislain Haine , Anass Serhani , Xavier Vasseur

Our goal in this paper is to solve the 1-D heat equation by an hybrid deterministic-stochastic iterative procedure . The deterministic side consists in discretizing the equation by the Crank-Nicolson method and the stochastic side consists…

概率论 · 数学 2022-10-07 Fouad Maouche

When modelling phase change, the latent heat released (absorbed) during solidification (melting) must be included in the heat transfer equation. In this paper, different SPH methods for the implementation of latent heat, in the context of…

流体动力学 · 物理学 2018-02-21 Amirsaman Farrokhpanah , Markus Bussmann , Javad Mostaghimi

Unsupervised hashing methods typically aim to preserve the similarity between data points in a feature space by mapping them to binary hash codes. However, these methods often overlook the fact that the similarity between data points in the…

计算机视觉与模式识别 · 计算机科学 2023-09-01 Kam Woh Ng , Xiatian Zhu , Jiun Tian Hoe , Chee Seng Chan , Tianyu Zhang , Yi-Zhe Song , Tao Xiang

Estimating 3D human pose from a single image is a challenging task. This work attempts to address the uncertainty of lifting the detected 2D joints to the 3D space by introducing an intermediate state - Part-Centric Heatmap Triplets…

计算机视觉与模式识别 · 计算机科学 2019-10-29 Kun Zhou , Xiaoguang Han , Nianjuan Jiang , Kui Jia , Jiangbo Lu

Conventional embedding methods directly associate each symbol with a continuous embedding vector, which is equivalent to applying a linear transformation based on a "one-hot" encoding of the discrete symbols. Despite its simplicity, such…

机器学习 · 计算机科学 2018-06-26 Ting Chen , Martin Renqiang Min , Yizhou Sun

We introduce a new numerical method based on machine learning to approximate the solution of elliptic partial differential equations with collocation using a set of sigmoidal functions. We show that a feedforward neural network with a…

数值分析 · 数学 2023-03-24 Francesco Calabrò , Gianluca Fabiani , Constantinos Siettos

This paper introduces the Scaled Coordinate Transformation Boundary Element Method (SCTBEM), a novel boundary-type method for solving 3D potential problems. To address the challenges of applying the Boundary Element Method (BEM) to complex…

数值分析 · 数学 2024-07-17 Bo Yu , Ruijiang Jing

In this paper, B-spline collocation method is developed for the solution of one-dimensional hyperbolic telegraph equation. The convergence of the method is proved. Also the method is applied on some test examples, and the numerical results…

数值分析 · 数学 2017-07-11 M. Zarebnia , R. Parvaz

A fully discrete approximation of the one-dimensional stochastic heat equation driven by multiplicative space-time white noise is presented. The standard finite difference approximation is used in space and a stochastic exponential method…

数值分析 · 数学 2017-12-01 Rikard Anton , David Cohen , Lluis Quer-Sardanyons