Abstract
We define certain generalisations of hypergraph hypomorphisms, which we call k-morphisms, \((k,n-k)\)-hypomorphisms, partial \((k,n-k)\)-hypomorphisms. They are special bijections between collections of k-subsets of vertex sets of hypergraphs. We show that these mappings lead to alternative representations of the automorphism groups of r-uniform hypergraphs and vertex stabilisers of graphs. We also use them to show that almost every r-uniform hypergraph is reconstructible and \((k,n-k)\)-reconstructible. As a consequence we also obtain the result that almost every r-uniform hypergraph is asymmetric.
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Czimmermann, P. Generalisations of Hypomorphisms and Reconstruction of Hypergraphs. Graphs and Combinatorics 32, 887–901 (2016). https://doi.org/10.1007/s00373-015-1639-x
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DOI: https://doi.org/10.1007/s00373-015-1639-x