Hypertree-Width and Related Hypergraph Invariants
Isolde Adler, Georg Gottlob, Martin Grohe
Abstract
We study the notion of hypertree-width of hypergraphs. We prove that, up to a constant factor, hypertree-width is the same as a number of other hypergraph invariants that resemble graph invariants such as bramble-number, branch-width, linkedness, and the minimum number of cops required to win Seymour and Thomas's robber and cops game.
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