Treewidth, Computations and Approximations

and basic terminology.- Preliminaries.- Testing superperfection of k-trees.- Triangulating 3-colored graphs.- Only few graphs have bounded treewidth.- Approximating treewidth and pathwidth of a graph.- Approximating treewidth and pathwidth for some classes of perfect graphs.- Treewidth of chordal bipartite graphs.- Treewidth and pathwidth of permutation graphs.- Treewidth of circle graphs.- Finding all minimal separators of a graph.- Treewidth and pathwidth of cocomparability graphs of bounded dimension.- Pathwidth of pathwidth-bounded graphs.- Treewidth of treewidth-bounded graphs.- Recognizing treewidth-bounded graphs.