交换群

Group is an important concept in Modem Algebra. Viewed from a different angle it may be divided into two different categories: finite group and infinite group; and Abelian group and non-Abelian group.

群是《近世代数》的一个重要概念，从不同的角度出发，群可以分为有限群和无限群两大类，又可以分为交换群和非交换群两大类。

Friendship links Abelian group, this is planted on the net group still be pretty is much, or oneself are built group pull the person that has exchanged a link with you come in, let them help a person again, can bring many links, not informal of course what stands to be done, want and identical or oneself station theme is relevant, otherwise catenary the effect is not big also.

友情链接交换群，网上这种群还是蛮多的，或者自己建个群把和你交换过链接的人都拖进来，让他们再去拉人，能带来不少链接，当然不要随便什么站都做，要和自己的站主题相同或相关的，不然链了效果也不大。

In this project we obtain a sufficient and necessary condition for a finite group G has a p-block with a normal p-subgroup D as a defect group, a necessary and sufficient condition for a group which is an extension of a nilpotent group by an abelian group has a p-block of defect zero.

本项目中我们给出了正规p-子群是有限群G的亏群的一个充要条件和幂零群被交换群扩张的群有亏零块的充要条件。

Next we obtain some group theoretic conditions for the existence of p-blocks with defect 0 in some special groups, for instance, in an extension group of a nilpotent group by a abelian group, in a p-nilpotent group, in a group with all subgroups of order p are conjugate, and so on.

其次我们给出了一些特殊群的亏零块存在的群论条件，如幂零群被交换群扩张的群，p—幂零群，p—阶子群均共轭的群等。

Kimmerle proved that Coleman outer automorphism group is abelian and gave some sufficient conditions on the group being a p — group and trivial group.

Kimmerle又证明了该群还是交换群，而且他们给出了Coleman外自同构群是p'-群的一些充分条件和该群为平凡群的情况。

Suppose G is a finite group, then QG is a semisimple Q-algera, obviously ZG is a Z-order of QG,we denote the maximal Z-order by ?.If G is not abelian, it is not an easy thing to determine г; if G is an abelian group, then QG is isomorphic to the direct sum of a finite number of number fields, and r is the direct sum of these rings of algebraic integers of those number fields, but which elements of QG belong to r is not clear.

设G是一个有限群，那么QG是一个半单代数，ZG是QG的一个Z-序，设Γ是QG的一个极大Z-序，当G是一个非交换群时，Γ的求解是困难的问题；当G是一个交换群时，QG同构于有限多个数域的直和，Γ相应的就是各数域代数整数环的直和，但Γ具体是QG中那些元素不清楚。

In 7 years, I filed domain name of a Cn, began the beginning of exchanging station of my network address discharge, name lilac community, domain name Kissdh.cn begins to do do not have a few people and me to connect, after Baidu collects my station, gradually the picture stands, film station great majority looks for me actively to join, my way station arrives from exceed of thousands of IP tens of thousands of IP, because national policy is swept,fizzle out in this moment dozen of blame, my station ever was depilated by Baidu for a time or fall authority, there is policy on, there is the way to deal with a situation below, I stand be about to website name instead is normal character, on content also the character with normal instead of a lot of network address word that cause fire, the following day Baidu is collected afresh again go back, mix in the end of the year 8 the beginning of the year when, my discharge exchanging station is close to 80 thousand IP for a time, the space changed a few, can be in right now, the domain name that home major suspect seems adult content did abhorrent CNNIC to ban entirely, include 10 thousand networks, new network, new each other inside the CN rice of exchanging station of N much discharge is avoided without laborious entirely at difficult, boiled in discharge Abelian group in a moment, it is to blame CNNIC for the most part this kind of outrageous conduct, discharge exchanging station as platform of discharge change trains, no more than is to make a discharge transition, how does picture of likelihood occurrence pornography reach video?

07年中，我申请了一个cn域名，开始了我的网址流量交换站的开始，并取名"丁香社区"，域名kissdh.cn开始做没几个人和我连，百度收录我的站后，渐渐的图片站，电影站大多数都主动找我连接，我的小站从几千IP逾越到几万IP，就在这个时候因国家政策扫黄打非，我的站曾一度被百度拔毛或降权，上有政策，下有对策，我立即将网站名改为正规文字，内容上也把许多惹火的网址字眼改为正常的文字，第二天百度就又就重新收录回去，在年底和08年初的时候，我的流量交换站一度接近8万IP，空间都换了几个，可就在此时，可恶的CNNIC将国内大部分疑似成人内容的域名全部做了封杀，包括万网，新网，新互在内的N多流量交换站的CN米全部没有辛免于难，霎时流量交换群里沸腾了，大部分都是抱怨CNNIC这种可恶的行为，流量交换站做为流量中转平台，无非是做个流量转换，怎么可能出现色情图片及视频呢？

Group, Subgoup, Permutation Group, Cyclic Group, Commutative Group, Normal Subgroup, Factor Group, Isomorphism, Ring, Ideal, Field, Polynomial Ring, Factor Ring.

课程内容：群，子群，置换群，循环群，交换群，正规子群，商群，群之同构，环，理想，体，多项式环，商环等。

Subgroup, Factor Group, Isomorphism, Ring, Ideal, Field, Polynomial Ring, Factor

课程内容：群，子群，置换群，循环群，交换群，正规子群，商群，群之同构，环，理想，体，多项式环，商环等。

We anew confirm every generated relation of non-commutative group of 16 orders by using Hlder, O.

通过群的同构分类的观点，分析了16阶非交换群的生成关系，并使用霍尔德定理、N/C定理及元素阶的分析，重新确定了16阶非交换群的生成关系。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。