Other Formulas for the Ree-Hoover and Mayer Weights of Families of 2-Connected Graphs

• 作者: Amel Kaouche
• 来源期刊: 应用数学与应用物理(英文)
• 学科: 数学
• 关键词: Combinatorial MAYER WEIGHT Statistical Mechanics Ree-Hoover WEIGHT Graph INVARIANTS VIRIAL Expansion
• 年，卷（期）: 2019,（8）
• 页码范围: 1800-1813
• 页数: 14页
• 分类号: O1

摘要

We study graph weights which naturally occur in Mayer’s theory and Ree-Hoover’s theory for the virial expansion in the context of an imperfect gas. We pay particular attention to the Mayer weight and Ree-Hoover weight of a 2-connected graph in the case of the hard-core continuum gas in one dimension. These weights are calculated from signed volumes of convex polytopes associated with the graph. In the present paper, we use the method of graph homomorphisms, to develop other explicit formulas of Mayer weights and Ree-Hoover weights for infinite families of 2-connected graphs.