1) Friedrichs extension
Friedrichs扩张
1.
In this paper,we study the Friedrichs extension of the minimal operator of regular order differential operators in direct sum spaces by the basic theory of first-order systems of differential equation and their relationship to general n-th order quasi-differential expressions,and give the boundary conditions of Friedrichs extension.
应用一阶对称微分系统及相应的高阶微分方程的基本理论,讨论了正则型高阶微分算子的最小算子在直和空间上的Friedrichs扩张,给出Friedrichs扩张的边条件形式。
2) expand
[英][ɪk'spænd] [美][ɪk'spænd]
扩张
1.
Treatment effect of submental artery skin flap and expanded cervical flap on chin scar;
颏下动脉皮瓣联合颈部扩张皮瓣修复颏部瘢痕
2.
The harmonious request and countermeasure of university culture construction against the background of expanding higher educaiton;
高等教育扩张背景下大学文化建设的和谐要求与对策
3.
From 1930s, the United States political system of "Separation of Powers" has change greatly with the presents drastic power expanding.
20世纪30年代以来,美国的"三权分立"政治体制发生了变化,总统权力获得了急剧扩张,总统逐渐成为美国的权力中心。
3) Expansion
[英][ɪk'spænʃn] [美][ɪk'spænʃən]
扩张
1.
Spatial and Artistic Conception Expansion--Imaging the Big from the Small in Chinese Classical Garden;
空间与意境的扩张——中国古典园林中的以小见大
2.
Advice on supervised countermeasure of built-up land expansion in China;
完善我国建设用地扩张监控措施的建议
4) dilation
[英][dai'leiʃən] [美][daɪ'leʃən]
扩张
1.
Microwave tissue coagulation combined with "Savary-Gilliard" rod dilation via endoscopy in the treatment of anastomotic-stenosis after esophageal and/or gastric cardiac cancer operation;
内镜下微波灼扩联合探条扩张治疗食管癌/贲门癌术后吻合口狭窄
2.
2)mm before dilation and(9.
方法:25例食管贲门失弛缓患者,其中Boston专用球囊导管扩张术组(A组)15例;内镜下注射A型肉毒毒素组(B组)10例。
3.
(2) Dilation group; Dilating the cardiac sphincter with Rigiflex dilation balloon under endoscopies.
目的 了解经内镜气囊扩张和肉毒毒素注射2种方法治疗贯门失弛缓症后食管动力的改变。
5) Dilatation
[英][,dɪlə'teɪʃən, ,daɪlə-] [美][,dɪlə'teʃən, ,daɪlə-]
扩张
1.
A comparison of temparary placement of expandable stent and balloon dilatation in treatment of anastomotic steruosis after operation on esophagus or preventriculus cancer;
暂时性金属支架扩张与水囊扩张治疗食管、贲门癌术后吻合口良性狭窄的对比研究
2.
Implementation of percutaneous dilatational tracheostomy on neurosurgical coma patients;
经皮扩张气管造口术在神经外科昏迷病人中的应用(英文)
3.
Experiment on offering local skin flap field after dilatation of free skin graft field;
游离皮片受区扩张后作为任意皮瓣供瓣区的实验报告
6) extension
[英][ɪk'stenʃn] [美][ɪk'stɛnʃən]
扩张
1.
K-Theory for Extensions of Purely Infinite Simple C~*-Algebras;
纯无限单C~*-代数的扩张代数的K-理论
2.
The extension and their properties of n-Lie algebras;
n-李代数的扩张及其性质
3.
Two kinds of Stability Matrices and Meta-positive Definite Matrices Extension;
两种稳定性矩阵类及亚正定阵类的扩张
补充资料：极大扩张和极小扩张
极大扩张和极小扩张
maximal and minimal extensions
极大扩张和极小扩张匡.习的司出目.公油抽lex妇心.旧;MaKcl.Ma刀‘.oe H Mll.”M田.妇oe PaC山一Pe皿朋] 一个对称算子(s笋nr贺苗c opemtor)A的极大扩张和极小扩张分别是算子牙(A的闭包，(见闭算子(cfo“月。详mtor”)和A’(A的伴随，见伴随算子(呐。int opera.tor)).A的所有闭对称扩张都出现在它们之间.极大扩张和极小扩张相等等价于A的自伴性(见自伴算子(义休.adjoint operator))，并且是自伴扩张唯一性的必要和充分条件.A.H.J’Ior朋oB，B.c.lll户、MaR撰
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