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检索条件"机构=Scientific Computing and Numerical Analysis"
123 条 记 录,以下是61-70 订阅
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Convergence of finite difference methods for the wave equation in two space dimensions
arXiv
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arXiv 2017年
作者: Wang, Siyang Nissen, Anna Kreiss, Gunilla Division of Scientific Computing Department of Information Technology Uppsala University UppsalaSE-751 05 Sweden Division of Numerical Analysis Department of Mathematics Royal Institute of Technology StockholmSE-100 44 Sweden Division of Scientific Computing Department of Information Technology Uppsala University UppsalaSE-751 05 Sweden
When using a finite difference method to solve an initial–boundary–value problem, the truncation error is often of lower order at a few grid points near boundaries than in the interior. Normal mode analysis is a pow... 详细信息
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Advances concerning multiscale methods and uncertainty quantification in EXA-DUNE
Advances concerning multiscale methods and uncertainty quant...
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International Conference on Software for Exascale computing, SPPEXA 2015
作者: Bastian, Peter Engwer, Christian Fahlke, Jorrit Geveler, Markus Göddeke, Dominik Iliev, Oleg Ippisch, Olaf Milk, René Mohring, Jan Müthing, Steffen Ohlberger, Mario Ribbrock, Dirk Turek, Stefan Interdisciplinary Center for Scientific Computing Heidelberg University Heidelberg Germany Institute for Computational and Applied Mathematics University of Münster Münster Germany Institute of Applied Analysis and Numerical Simulation University of Stuttgart Stuttgart Germany Institute for Applied Mathematics TU Dortmund Dortmund Germany Fraunhofer Institute for Industrial Mathematics ITWM Kaiserslautern Germany Institut für Mathematik TU Clausthal-Zellerfeld Clausthal-Zellerfeld Germany
In this contribution we present advances concerning efficient parallel multiscale methods and uncertainty quantification that have been obtained in the frame of the DFG priority program 1648 Software for Exascale Comp... 详细信息
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Deep neural networks on diffeomorphism groups for optimal shape reparameterization
arXiv
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arXiv 2022年
作者: Celledoni, Elena Glöckner, Helge Riseth, Jørgen Schmeding, Alexander Department of Mathematics NTNU Trondheim Norway Institut für Mathematik Universität Paderborn Germany Department of Numerical Analysis and Scientific Computing Simula Research Laboratory Norway Department of Mathematics University of Oslo Norway
One of the fundamental problems in shape analysis is to align curves or surfaces before computing geodesic distances between their shapes. Finding the optimal reparametrization realizing this alignment is a computatio... 详细信息
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On The Importance of Fundamental Computational Fluid Dynamics Towards a Robust and Reliable Model of Left Atrial Flows: Is There More Than Meets the Eye?
arXiv
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arXiv 2023年
作者: Khalili, Ehsan Daversin-Catty, Cécile Olivares, Andy L. Mill, Jordi Camara, Oscar Valen-Sendstad, Kristian Department of Computational Physiology Simula Research Laboratory Oslo Norway Department of Numerical Analysis and Scientific Computing Simula Research Laboratory Oslo Norway Department of Information and Communication Technologies Universitat Pompeu Fabra Barcelona Spain
Computational fluid dynamics (CFD) studies of left atrial flows have reached a sophisticated level, e.g., revealing plausible relationships between hemodynamics and stresses with atrial fibrillation. However, little f... 详细信息
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A Hybrid Discontinuous Galerkin Method for Darcy-Stokes Problems
Lecture Notes in Computational Science and Engineering
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Lecture Notes in Computational Science and Engineering 2013年 91卷 663-670页
作者: Egger, Herbert Waluga, Christian Department of Mathematics Numerical Analysis and Scientific Computing Technische Universität Darmstadt Dolivostraße 15 64293 Darmstadt Germany Center of Mathematics Technische Universität München Boltzmannstraße 3 85748 Garching bei München Germany
We propose and analyze a hybrid discontinuous Galerkin method for the solution of incompressible flow problems, which allows to deal with pure Stokes, pure Darcy, and coupled Darcy-Stokes flow in a unified manner. The... 详细信息
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Hardware-Based efficiency advances in the EXA-DUNE project
Hardware-Based efficiency advances in the EXA-DUNE project
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International Conference on Software for Exascale computing, SPPEXA 2015
作者: Bastian, Peter Engwer, Christian Fahlke, Jorrit Geveler, Markus Göddeke, Dominik Iliev, Oleg Ippisch, Olaf Milk, René Mohring, Jan Müthing, Steffen Ohlberger, Mario Ribbrock, Dirk Turek, Stefan Interdisciplinary Center for Scientific Computing Heidelberg University Heidelberg Germany Institute for Computational and Applied Mathematics University of Münster Münster Germany Institute of Applied Analysis and Numerical Simulation University of Stuttgart Stuttgart Germany Institute of Applied Mathematics TU Dortmund Dortmund Germany Fraunhofer Institute for Industrial Mathematics ITWM Kaiserslautern Germany Institut für Mathematik TU Clausthal-Zellerfeld Clausthal-Zellerfeld Germany
We present advances concerning efficient finite element assembly and linear solvers on current and upcoming HPC architectures obtained in the frame of the EXA-DUNE project, part of the DFG priority program 1648 Softwa... 详细信息
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The directional flow generated by peristalsis in perivascular networks – theoretical and numerical reduced-order descriptions
arXiv
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arXiv 2023年
作者: Gjerde, Ingeborg G. Rognes, Marie E. Sánchez, Antonio L. Department of Numerical Analysis and Scientific Computing Simula Research Laboratory Kristian Augusts gate 23 Oslo0164 Norway Department of Mechanical and Aerospace Engineering University of California San Diego La Jolla United States
Directional fluid flow in perivascular spaces surrounding cerebral arteries is hypothesized to play a key role in brain solute transport and clearance. While various drivers for pulsatile flow, such as cardiac or resp... 详细信息
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A perfectly matched layer approach for radiative transfer in highly scattering regimeS
arXiv
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arXiv 2018年
作者: Egger, Herbert Schlottbom, Matthias Department of Mathematics Numerical Analysis and Scientific Computing TU Darmstadt Dolivostr. 15 Darmstadt64293 Germany ZDepartment of Applied Mathematics University of Twente P.O. Box 217 Enschede7500 AE Netherlands
We consider the numerical approximation of boundary conditions in radiative transfer problems by a perfectly matched layer approach. The main idea is to extend the computational domain by an absorbing layer and to use... 详细信息
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Feasibility of Acousto-Electric Tomography
arXiv
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arXiv 2019年
作者: Jensen, Bjørn Kirkeby, Adrian Knudsen, Kim Faculty of Information Technology University of Jyväskylä Finland Department of Numerical Analysis and Scientific Computing Simula Research Laboratory Oslo Norway Department of Applied Mathematics and Computer Science Technical University of Denmark Kgs Lyngby Denmark
In acousto-electric tomography the goal is to reconstruct the electric conductivity in a domain from electrostatic boundary measurements of corresponding currents and voltages, while the domain is penetrated by a time... 详细信息
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Exploring Biologically Inspired Mechanisms of Adversarial Robustness
arXiv
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arXiv 2024年
作者: Holzhausen, Konstantin Merlid, Mia Torvik, Håkon Olav Malthe-Sørenssen, Anders Lepperød, Mikkel Elle Department of Physics University of Oslo Sem Sælands vei 24 Fysikkbygningen Oslo0371 Norway Department of Numerical Analysis and Scientific Computing Simula Reserach Laboratory Kristian Augusts gate 23 Oslo0164 Norway
Backpropagation-optimized artificial neural networks, while precise, lack robustness, leading to unforeseen behaviors that affect their safety. Biological neural systems do solve some of these issues already. Unlike a... 详细信息
来源: 评论