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一阶/二阶时间发展方程预条件时空离散矩阵的一致谱分析
时间发展方程 预条件 时空离散矩阵 一致谱分析
2023/1/5
Solving evolutionary equations in a parallel-in-time manner is an attractive topic. The iterative algorithm based on the block $\alpha$-circulant preconditioning technique has shown promising advantag...
This work proposes an accurate hyper-singular boundary integral equation method for dynamic poroelastic problems with Neumann boundary condition in three dimensions and both the direct and indirect me...
密度泛函理论全电子计算的免正交化可并行算法框架
密度泛函理论 全电子计算 免正交化 可并行算法框架
2023/1/5
All-electron calculations play an important role in density functional theory, in which improving computational efficiency is one of the most needed and challenging tasks. In the model formulations, b...
一类求解非光滑矩阵流形优化的基于增广拉格朗日的半光滑牛顿法
非光滑矩阵 流形优化 增广拉格朗日 半光滑牛顿法
2023/1/5
This paper is devoted to studying an augmented Lagrangian method for solving a class of manifold optimization problems, which have nonsmooth objective functions and nonlinear constraints. Under the co...
无穷集上多项式优化的齐次化方法
无穷集 多项式优化 齐次化方法
2023/1/5
This paper considers polynomial optimization with unbounded sets. We give a homogenization formulation and propose a hierarchy of Moment-SOS relaxations to solve it. Under the assumptions that the fea...
含有公共噪声的线性二次平均场社会控制——直接解耦方法（张纪峰）
公共噪声 线性二次平均场 社会控制 直接解耦方法
2023/2/22
This paper is concerned with mean field linear quadratic social control with common noise, where the weight matrices of individual costs are indefinite We first obtain a set of forward–backward stocha...
A line search penalty-free sequential quadratic programming method is proposed for nonlinear equality-constrained optimization. Generally, feasible directions are used to minimize the measurement of t...
具有完全未知的外系统的热方程的输出跟踪（郭宝珠）
外系统 热方程 输出跟踪 完全未知
2023/2/22
In this paper, we consider output regulation for a 1-d heat equation where the disturbances generated from an unknown finite-dimensional exosystem enter all possible channels. We adopt adaptive observ...
非线性轴向运动梁的边界稳定性判据（郭宝珠）
非线性轴向运动梁 边界稳定性
2023/2/22
This paper deals with, in the framework of absolute stability, boundary stabilization for a nonlinear axially moving beam under boundary velocity feedback controls. The nonlinear boundary control that...
影响域近似对非局部模型局部极限的影响（谢和虎）
域 非局部模型 局部极限
2023/2/22
Many nonlocal models have adopted Euclidean balls as the nonlocal interaction neighborhoods. When solving them numerically, it is sometimes convenient to adopt polygonal approximations of such balls. ...
The main difficulty in studying numerical method for stochastic evolution equations (SEEs) lies in the treatment of the time discretization (J. Printems. [ESAIM Math. Model. Numer. Anal. (2001)]). Alt...
布尔网络的能观性准则（陈鸽）
布尔网络 能观性 准则
2023/2/22
This article investigates observability of Boolean control networks (BCNs) and probabilistic Boolean networks (PBNs). First, weak observability of BCNs is discussed via the nonaugmented approach. The ...
This paper is concerned with the factorization and equivalence problems of multivariate polynomial matrices. We present some new criteria for the existence of matrix factorizations for a class of mult...
The first extended greatest common right divisor (GCRD) algorithm for parametric univariate polynomial matrices is presented. The starting point of this GCRD algorithm is the free property of submodul...
无穷集上多项式优化的齐次化方法（袁亚湘）
无穷集 多项式优化 齐次化方法
2023/2/22
This paper considers polynomial optimization with unbounded sets. We give a homogenization formulation and propose a hierarchy of Moment-SOS relaxations to solve it. Under the assumptions that the fea...