标题： 通过突变理论对三组分模型相图的分析 显示英文标题

标题： Analysis of a three-component model phase diagram by Catastrophe Theory

摘要： 我们使用突变理论的方法分析具有三个组分和五个参数的格子气体模型的热力学势。 我们找到了具有五阶余维的最高奇点，并建立了其横截性。 因此，相应的七次 Landau 势，即标准形式 Wigwam 或$A_6$，构成了研究该模型整体相图的合适起点。 显示英文摘要

摘要： We analyze the thermodynamical potential of a lattice gas model with three components and five parameters using the methods of Catastrophe Theory. We find the highest singularity, which has codimension five, and establish its transversality. Hence the corresponding seven-degree Landau potential, the canonical form Wigwam or $A_6$, constitutes the adequate starting point to study the overall phase diagram of this model.