搜索结果: 151-165 共查到“数学”相关记录1130条 . 查询时间(0.721 秒)
This paper develops a singularity-free adaptive tracking control scheme for a general class of multi-input and multi-output uncertain discrete-time nonlinear systems with non-canonical control gain ma...
正则化系统辨识输入设计中的嵌入和逆嵌入
正则化系统 辨识输入 嵌入 逆嵌入
2023/6/13
Input design is an important problem for system identification and has been well studied for the classical system identification, i.e., the maximum likelihood/prediction error method. For the emerging...
Let T=(V,A) be a tournament with a nonnegative integral weight w(e) on each arc e. A subset F of arcs is called a feedback arc set (FAS) if T\F contains no cycles (directed). A collection F of FASs (w...
黎曼优化问题的约束消解方法
黎曼优化 约束消解 约束优化
2023/6/13
In this paper, we consider optimization problems over closed embedded submanifolds of \mathbb{R}^n, which are defined by the constraints c(x)=0. We propose a class of constraint dissolving approaches ...
具有小代数秩的Fano叶状结构
小代数秩 Fano 叶状结构
2023/5/29
In this paper we study the algebraic ranks of foliations on Q-factorial normal projective varieties. We start by establishing a Kobayashi-Ochiai's theorem for Fano foliations in terms of algebraic ran...
从R到S的半调和映照的非退化性以及量化稳定性
半调 映照 非退化性 量化稳定性
2023/5/29
We consider half-harmonic maps from \mathbb{R} (or \mathbb{S}) to \mathbb{S}. We prove that all (finite energy) half-harmonic maps are non-degenerate. In other words, they are integrable critical poin...
This paper considers the distributed sparse identification problem over wireless sensor networks such that all sensors cooperatively estimate the unknown sparse parameter vector of stochastic dynamic ...
This article presents graph theoretic conditions for the controllability and accessibility of bilinear systems over the special orthogonal group, the special linear group and the general linear group,...
中国科学院半导体研究所在非互易光学介质几何理论方面取得进展（图）
非互易 光学介质 几何理论
2023/5/24
光在复杂介质中的传播是光学和相对论的经典课题。在爱因斯坦提出广义相对论不久，W. Gordon，I. E. Tamm和G. V. Skrotskii等将费马原理推广到弯曲时空。1960年，J. Plebanski指出弯曲时空度规的空间分量和时空混合分量分别等价于非均匀各向异性光学介质的折射率(介电常数与磁导率)和反对称非互易磁电耦合参数。上述结果已被广泛应用于引力场量子效应的实验室模拟。2006年...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Mixing flow and advection-diffusion-reaction equations
混合流 平流 扩散反应方程
2023/5/18
In the study of incompressible fluid, one fundamental phenomenon that arises in a wide variety of application is dissipation enhancement by so-called mixing flow. In this talk, I will give a brief int...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Almost sure scattering for the cubic NLS on R3T1
R3T1 三次NLS 散射 Cauchy问题
2023/5/18
We consider the Cauchy problem for the defocusing cubic NLS on R3T1 and establish almost sure scattering for random initial data. The main obstacle to extend the classical almost sure scattering resul...
成都信息工程大学应用数学学院胡容教授
成都信息工程大学应用数学学院 胡容 教授 优化理论
2023/12/4
胡容，女，教授，生于1981年，中共党员，博士研究生学历，理学博士学位，四川省第十二批学术和技术带头人后备人选。
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Morse boundaries of Groups
群 Morse边界 群论
2023/5/17
The Morse boundary of a proper geodesic metric space is a generalization of the Gromov boundary of a hyperbolic space. It is a quasi-isometry invariant to study "hyperbolic directions" in the space. T...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Unconditional stability and error estimates of FEMs for the electro-osmotic flow in micro-channels
微通道 电渗流FEM 无条件稳定性 误差估计
2023/5/15
In this paper, we will provide the the finite element method for the electro-osmotic flow in micro-channels, in which a convection-diffusion type equation is given for the charge density ρe. A time-di...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：No blow-up by nonlinear It? noise for the Euler equations
非线性 爆炸 欧拉方程 噪声
2023/5/17
We consider the incompressible Euler equations in two or three dimensions and we show that the addition of a suitable multiplicative It? noise with superlinear growth prevents a smooth solution from b...