1) characteristic sinple group
特征单群
2) character
特征特征
3) characteristic
特征
1.
The Types & Characteristics of Rattan Furniture Patterns;
藤家具图案纹样类型及特征
2.
Discussion on Characteristic of Loose Subsidence Pillar and Harmfulness to Producing in Malan Coal Mine;
马兰矿松散陷落柱特征及对生产危害性分析
3.
Study on some characteristics of the investment decision in coal engineering projects;
煤炭工程项目投资决策特征研究
4) character
特征
1.
The Analysis of Environmental and Economic Character of Industry in Three-gay Area;
三峡地区工业行业环境与经济行为特征分析
2.
Character and origin of eluvial deposits between the copper ore layers at Dongxiang mining area;
江西东乡铜矿层间溶蚀残积堆积物的特征及成因
3.
Study the Characteristics of AE Temporal Sequences in the Process of Failure and Deformation of Rock;
岩体破裂变形过程中AE时序特征研究
5) feature
特征
1.
Nonlinear percolation feature of low permeability reservoirs and its effect;
低渗油藏非线性渗流特征及其影响
2.
The features and operating technique of Chinese uncooked wheat koji;
我国生麦制曲特征和操作技艺
3.
The Process Planning of Refine Casting Mould to Turbine Blade Based on Feature and Operation;
基于操作与精铸模特征的工艺规程设计
6) Characteristics
特征
1.
Basical characteristics of lead-zinc mineral resources and the vista on geological prospecteing of super large scale lead-zinc deposits in Yunnan;
云南铅锌资源基本特征及超大型铅锌矿床找矿前景
2.
Characteristics and Mutative Law of Smoking Qualities of Flue-cured Tobacco from the Chiefly Producing Area in Hunan Province of China;
湖南主产烟区烤烟感官质量特征及变化规律研究
3.
Occurrence of Cryptoexplosive Breccia and Porphyry Type Orebodies in Jiguanzui Deposit and Their Characteristics;
鸡冠嘴矿床隐爆角砾岩和斑岩型矿体的存在及其特征
参考词条
补充资料:半群的特征标
半群的特征标
character of a semi - group
半群的特征标{d皿raCterofa胭ni.g欧甲;”甲眼.印IIO月”pyU四】 具有单位儿的交换半群S到由所有模为l的复数及零组成的乘法半群的非零同态.有时半群的特征标也理解为到模眨}的复数的乘法半群的非零同态.当S是Cli月劝心半群(Cllfford semi一『ouP)时,半群特征标的这两个概念是等价的.半群S的所有特征标构成的集合N*在点态乘法,. (x*举M‘、}立x(a冲(。).a任S,x,势于兮’}:成为一个具有单位儿的交换半群(特征标半群(character sem卜grouP)). 半群S的理想尸称为全孤立的(totally isola-t曰》(素的(P rlme)),如果S、尹是子半群.具有单位元的交换半群的全部全孤立理想的集合在并运算下成为一个半格.这个半格同构于S*的幂等元的半格,见幕等元的半群(ldenl因tents,se。卜咨oup of).交换半群S的特征标称为分离S的元素,如果对任何a,b任S,a并h,必有x任S幸使/(a)笋烈句.设S有单位元,则半群S的特征标分离s的儿素当且仅当‘是可分半群(望pardble犯m卜grouP).有单位元的任意交换半群的特征标半群的刻画问题,化为那些是群的半格的半群的特征标的刻画几」j这个半格满足极小条件时相应的刻画(例如)可参见{l}文献{2}中有特征标半群的·个抽象刻画. 对睡个u‘片z任万*、映射升z,飞(a)(z任S’)是半群S*的特征标,即了任S巾*.映射田;a。,厅是S到S’‘内的同态(所谓典范同态(以nonical homornorp-油m))如果田是s到S*’上的同构,则称对娜宇孕(dt画ty theorem)对于S成立.对于有单位儿的交换半群S,对偶定理成立,当且仅当S是逆半群(【31).关于特征标半群在拓扑情况下的对偶性问题可见拓扑半群(topok〕gi口1 semi一grouP)
说明:补充资料仅用于学习参考,请勿用于其它任何用途。