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We introduce a method for solving a self consistent electronic calculation within localized atomic orbitals, that allows us to converge to the complete basis set (CBS) limit in a stable, controlled, and systematic way. We compare our…

强关联电子 · 物理学 2015-05-19 S. Azadi , C. Cavazzoni , S. Sorella

The ECME algorithm has proven to be an effective way of accelerating the EM algorithm for many problems. Recognising the limitation of using prefixed acceleration subspace in ECME, we propose the new Dynamic ECME (DECME) algorithm which…

统计计算 · 统计学 2010-04-06 Yunxiao He , Chuanhai Liu

The dynamic mode decomposition (DMD) has become a leading tool for data-driven modeling of dynamical systems, providing a regression framework for fitting linear dynamical models to time-series measurement data. We present a simple…

数值分析 · 数学 2017-04-11 Travis Askham , J. Nathan Kutz

In this paper, we present a distributed model predictive control (DMPC) scheme for dynamically decoupled systems which are subject to state constraints, coupling state constraints and input constraints. In the proposed control scheme,…

系统与控制 · 电气工程与系统科学 2024-08-17 Adrian Wiltz , Fei Chen , Dimos V. Dimarogonas

We present a fully discrete finite element method for the interior null controllability problem subject to the wave equation. For the numerical scheme, piece-wise affine continuous elements in space and finite differences in time are…

数值分析 · 数学 2023-05-10 Erik Burman , Ali Feizmohammadi , Lauri Oksanen

In this work, we design an entropy stable, finite volume approximation for the shallow water magnetohydrodynamics (SWMHD) equations. The method is novel as we design an affordable analytical expression of the numerical interface flux…

数值分析 · 数学 2015-09-24 Andrew R. Winters , Gregor J. Gassner

In this paper, we showcase the interplay between discrete and continuous optimization in network-structured settings. We propose the first fully decentralized optimization method for a wide class of non-convex objective functions that…

最优化与控制 · 数学 2018-02-13 Aryan Mokhtari , Hamed Hassani , Amin Karbasi

In this paper, we present a robust adaptive model predictive control (MPC) scheme for linear systems subject to parametric uncertainty and additive disturbances. The proposed approach provides a computationally efficient formulation with…

系统与控制 · 电气工程与系统科学 2020-03-12 Johannes Köhler , Elisa Andina , Raffaele Soloperto , Matthias A. Müller , Frank Allgöwer

Pulay's Residual Metric Minimization (RMM) method is one of the standard techniques for achieving self consistency in ab initio electronic structure calculations. We describe a reformulation of Pulay's RMM which guarantees reduction of the…

凝聚态物理 · 物理学 2009-10-31 D. R. Bowler , M. J. Gillan

Density functional theory (DFT) has become a standard tool for the study of point defects in materials. However, finding the most stable defective structures remains a very challenging task as it involves the solution of a multimodal…

材料科学 · 物理学 2020-11-16 Marco Arrigoni , Georg K. H. Madsen

The Intrinsic Surface Finite Element Method (ISFEM) was recently proposed to solve Partial Differential Equations (PDEs) on surfaces. ISFEM proceeds by writing the PDE with respect to a local coordinate system anchored to the surface and…

数值分析 · 数学 2024-10-08 Elena Bachini , Mario Putti

We develop an efficient algorithm, coordinate descent FCI (CDFCI), for the electronic structure ground state calculation in the configuration interaction framework. CDFCI solves an unconstrained non-convex optimization problem, which is a…

化学物理 · 物理学 2019-07-03 Zhe Wang , Yingzhou Li , Jianfeng Lu

We develop a stabilized cut finite element method for the stationary convection diffusion problem on a surface embedded in ${\mathbb{R}}^d$. The cut finite element method is based on using an embedding of the surface into a three…

数值分析 · 数学 2018-07-24 Erik Burman , Peter Hansbo , Mats G. Larson , Andre Massing , Sara Zahedi

Minimizing the so-called "Dirichlet energy" with respect to the domain under a volume constraint is a standard problem in shape optimization which is now well understood. This article is devoted to a prototypal non-linear version of the…

最优化与控制 · 数学 2020-05-19 Antoine Henrot , Idriss Mazari , Yannick Privat

In this paper, we introduce a lightweight dynamic epistemic logical framework for automated planning under initial uncertainty. We reduce plan verification and conformant planning to model checking problems of our logic. We show that the…

人工智能 · 计算机科学 2016-06-27 Quan Yu , Yanjun Li , Yanjing Wang

This work provides a self-consistent extension of the recently proposed density-based basis-set correction method for wave-function electronic-structure calculations [J. Chem. Phys. 149, 194301 (2018)]. In contrast to the previously used…

经典物理 · 物理学 2021-08-25 Emmanuel Giner , Diata Traore , Barthélemy Pradines , Julien Toulouse

Calculating relative free energies is a topic of substantial interest and has many applications including solvation and binding free energies, which are used in computational drug discovery. However, there remain the challenges of accuracy,…

化学物理 · 物理学 2016-09-28 Asaf Farhi , Bipin Singh

A unified approach to energy-efficient power control is proposed for code-division multiple access (CDMA) networks. The approach is applicable to a large family of multiuser receivers including the matched filter, the decorrelator, the…

信息论 · 计算机科学 2007-07-13 Farhad Meshkati , Dongning Guo , H. Vincent Poor , Stuart C. Schwartz

The theory of compressive sensing (CS) suggests that under certain conditions, a sparse signal can be recovered from a small number of linear incoherent measurements. An effective class of reconstruction algorithms involve solving a convex…

信息论 · 计算机科学 2015-05-13 Muhammad Salman Asif , Justin Romberg

We present a stability and convergence analysis of the space-time continuous finite element method for the Hamiltonian formulation of the wave equation. More precisely, we prove a continuous dependence of the discrete solution on the data…

数值分析 · 数学 2025-07-18 Sergio Gómez