symmetry group

Systematic check of symmetry group tables ( continued)& proof on the error of the general formula B of the space group p42/ nnm

对称群表的系统校验（续）&论证P42/nnm总公式B的错误

Symmetry evaluation of u ( 2~ n) group chains using S-Function method

U（2~n）群链对称性计算的S&函数方法

We study partial differential equations ( PDEs ) by using symmetry group theory.

本文运用对称群的理论来研究几何中的偏微分方程.

The symmetry group is the permutation group acting to exchange particles of the same type.

在对称组排列组表演交换微粒的同类型.

Finally, group classification of a generalized KP equation is undertaken. Group invariant solutions of the equation are obtained by combining the symmetry reduction method with the variable coefficient generalized Tanh method.

另外，我们还给出了广义Kadomtsev-Petviashvili方程的古典对称群分类，并结合变系数广义Tanh函数方法获得了其群不变解。

Renormalization semi-group symmetry in quantum field of strong interaction at short distance

强相互作用短距离量子场的重整化半群对称性

A unitary group treatment for strong crystal field in octahedral symmetry

八面体晶场强场理论的U群方法

Study on the slot number of the minimum symmetry group in AC machine winding pole-changing theory

绕组理论中p1和p2均非3倍数时最小对称组槽数的研究

The theorem says: in the theory of ac machine winding pole-changing, the sufficient and necessary conditions of the slot number in the minimum symmetry group being one are that p1 and p2 are non-triples.

定理的内容是：在交流电机绕组变极理论中，最小对称组槽数等于1的充分必要条件是p1和p2均非3倍数。

Considering the action of dihedral group on some concret array spaces, this paper studies the symmetry of array space, computes the cycle index and points out some applications of cycle index.

本文通过将二面体群作用在一些具体的阵列空间上，讨论阵列空间的对称性，计算二面体群所对应的循环指标，并且指出循环指标的一些应用。