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Tractable hypergraph properties for constraint satisfaction and conjunctive queries
[article]
2011
arXiv
pre-print
An important question in the study of constraint satisfaction problems (CSP) is understanding how the graph or hypergraph describing the incidence structure of the constraints influences the complexity of the problem. For binary CSP instances (i.e., where each constraint involves only two variables), the situation is well understood: the complexity of the problem essentially depends on the treewidth of the graph of the constraints. However, this is not the correct answer if constraints with
arXiv:0911.0801v3
fatcat:4hyeugfjovdjja7pfovpvzom34