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EJC
2007
13 years 11 months ago
Hypertree width and related hypergraph invariants
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...
Isolde Adler, Georg Gottlob, Martin Grohe
CP
2005
Springer
14 years 5 months ago
Graph Invariants as Necessary Conditions for Global Constraints
Abstract. This article presents a database of about 200 graph invariants for deriving systematically necessary conditions from the graph properties based representation of global c...
Nicolas Beldiceanu, Mats Carlsson, Jean-Xavier Ram...