Other enumeration problems lead us to the study of orbits of permutation groups . 其它的計(jì)數(shù)問題引導(dǎo)我們?nèi)パ芯恐脫Q群的軌道。
The permutation group coset method in calculations of gauge field vertices 關(guān)于規(guī)范場頂角計(jì)算的置換群陪集簡化方法
Regular permutation group 正則置換群
With each recursive step , cross products with one additional permutation group are formed 伴隨每個(gè)遞回步驟,會(huì)形成帶有一個(gè)額外置換群的向量積。
4 . according to the property that all states of a certain cellular automata can build a permutation group , we can design block cipher based on this property 根據(jù)有些細(xì)胞自動(dòng)機(jī)的所有狀態(tài)可以構(gòu)成一個(gè)循環(huán)群這一特點(diǎn),指出了利用細(xì)胞自動(dòng)機(jī)構(gòu)造分組密碼的方式。
In mathematics, a permutation group is a group G whose elements are permutations of a given set M, and whose group operation is the composition of permutations in G (which are thought of as bijective functions from the set M to itself); the relationship is often written as (G,M). Note that the group of all permutations of a set is the symmetric group; the term permutation group is usually restricted to mean a subgroup of the symmetric group.