ETCHING FIGURE OF α-QUARTZ TWINNING ON DIFFERENT CRYSTALLOGRAPHIC FACES AND CRYSTAL SYMMETRY Fractal Limit Images of Chaotic Attractors with Crystallographic Symmetries α-石英双晶的腐蚀像在各不同结晶学面上的特征及晶体对称研究具有平面晶体对称性混沌吸引子的分形极限图
Derivation of subgroup network of three-dimensional crystallographic symmetry group 三维空间子群网的推导
The subgroup network of the three-dimensional crystallographic symmetry group has been derived based on the two maximal finite groups corresponding to two geometrically inequivalent classes. 在严格的群论基础上对三维空间的两个几何不等价的极大有限群的子群网进行了详细推导。