Hypergraph connectivity augmentation


The hypergraph augmentation problem is to augment a hypergraph by hyperedges to meet prescribed local connectivity requirements. We provide here a minimax theorem for this problem. The result is derived from the degree constrained version of the problem by a standard method. We shall construct the required hypergraph for the latter problem by a greedy type algorithm. A similar minimax result will be given for the problem of augmenting a hypergraph by weighted edges (hyperedges of size two with weights) to meet prescribed local connectivity requirements. Moreover, a special case of an earlier result of Schrijver on supermodular colourings shall be derived from our theorem.

DOI: 10.1007/s101070050036

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@article{Szigeti1999HypergraphCA, title={Hypergraph connectivity augmentation}, author={Zolt{\'a}n Szigeti}, journal={Math. Program.}, year={1999}, volume={84}, pages={519-527} }