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Separability And Vertex Ordering Of Graphs, Elizabeth Gorbonos
Separability And Vertex Ordering Of Graphs, Elizabeth Gorbonos
Theses and Dissertations (Comprehensive)
Many graph optimization problems, such as finding an optimal coloring, or a largest clique, can be solved by a divide-and-conquer approach. One such well-known technique is decomposition by clique separators where a graph is decomposed into special induced subgraphs along their clique separators. While the most common practice of this method employs minimal clique separators, in this work we study other variations as well. We strive to characterize their structure and in particular the bound on the number of atoms. In fact, we strengthen the known bounds for the general clique cutset decomposition and the minimal clique separator decomposition. Graph …