1) "Dao You"
道酉
2) unitary orbit
酉轨道
1.
Given T∈B(H), the equivalence class containing T with respect to unitary equivalence (similarity), denoted by U(T)(S(T)), is called the unitary orbit (similarity orbit, respectively) of T.
借助于Voiculescu的非交换Weyl-von Neumann定理以及Apostol,Fialkow,Herrero和Voiculescu的相似轨道定理,人们对于算子的相似轨道、酉轨道的结构和性质已经有了较好的理解。
2.
By giving the definition of minimal asymptotic unitary similarity-invariant subspace and applying the closure of the unitary orbit of a linear operator,it is proved that the map φ has the following representation: φ(X)=cU*XU(X∈B(H)) or φ(X)=cU*XTU( X∈B(H)),where c is a non-zero constant,U∈B(H) is a unitary operator,and XT denotes the transpose of X relative to a given orthonormal basis for
通过引入极小逼近酉相似不变子空间的概念以及应用算子酉轨道的闭包特征,证明了φ具有如下形式:φ(X)=cU*XU(X∈B(H))或者φ(X)=cU*XTU,其中c为非零常数,U∈B(H)为酉算子,XT为X关于H中任意给定的正规正交基的转置矩阵。
3) unitary groups
酉群
1.
In this paper,determine the Sylow subgroups of unitary groups U2nR over R= KG.
本文给出了R=KG上酉群U2nR的Sylow子群,若charK=p,U2nR的Sylow p-子群同构于某些特殊形式的矩阵生成的子群;若charK=p≠l,U2nR的Sylow l-子群同构于一循环群或半二面体群与若干Zl型循环群的圈积。
2.
In chapter 1, one type of maximal subgroups in unitary groups over local rings is obtained.
在第一章中,得到了局部环上酉群的一类极大子群:设R是一个特征不为2的局部环,φ:a(?)是R的一个二阶自同构,m是个正整数,S是R的唯一极大理想,令G(S)={(?)∈U(2m,R)|A,C,D∈R~m,B∈S~m},则G(S)是U(2m,R)的一个极大子群。
4) Youyang
酉阳
1.
Empirical Research on Classification and Control Modes of KarstRocky Desertification Zone in Southeastern Chongqing Based on Remote Sensing——A Case Study of Youyang in Chongqing;
基于遥感的渝东南喀斯特石漠化特征分区及其治理模式实证研究——以重庆市酉阳为例
2.
Research on the Hamlet Advancement of Poverty Relief in Youyang County;
重庆市酉阳县实施整村推进式扶贫的调查与思考
3.
Achievements and problems in rapid development of Youyang ecological tourism industry——Thinking of constructing ecological tourism zones in Chongqing,Hunan and Guizhou;
酉阳生态旅游业快速发展的成绩与问题——兼及构建“渝湘黔”生态旅游区的思考
5) unitary ESPRIT
酉ESPRIT
1.
Layover Solution Based on Unitary ESPRIT Algorithm in Multibaseline InSAR;
采用酉ESPRIT算法处理多基线InSAR层叠效应
6) unitary matrix
酉阵
1.
Let A,B be unitary matrix(partial unitary matrix or para unitary matrix).
给出了两个酉阵(部分酉阵或准酉阵)A 与B之和A+ B仍是酉阵(部分酉阵或准酉阵)的充要条件,同时给出A 与B的关系式。
补充资料:道-道间寻道时间
道-道间寻道时间(single track seek):
指磁头从一磁道移动至另一磁道的时间,单位为毫秒(ms)。
指磁头从一磁道移动至另一磁道的时间,单位为毫秒(ms)。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条