The density Turan problem for 3-uniform linear hypertrees. An efficient testing algorithm
Journal Title: Annales Universitatis Mariae Curie-Skłodowska. Sectio A, Mathematica - Year 2018, Vol 72, Issue 2
Abstract
Let T = (V, E) be a 3-uniform linear hypertree. We consider a blow-up hypergraph B[T ]. We are interested in the following problem. We have to decide whether there exists a blow-up hypergraph B[T ] of the hypertree T , with hyperedge densities satisfying some conditions, such that the hypertree T does not appear in a blow-up hypergraph as a transversal. We present an efficient algorithm to decide whether a given set of hyperedge densities ensures the existence of a 3-uniform linear hypertree T in a blow-up hypergraph B[T ].
Authors and Affiliations
Halina Bielak, Kamil Powroźnik
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