Approximately counting H-colourings is #BIS-hard

We consider the problem of counting H-colourings from an input graph G to a target graph H. We show that if H is any fixed graph without trivial components, then the problem is as hard as the well-known problem #BIS, which is the problem of (approximately) counting independent sets in a bipartite gr...

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Detalhes bibliográficos
Principais autores: Galanis, A, Goldberg, L, Jerrum, M
Formato: Journal article
Publicado em: Society for Industrial and Applied Mathematics 2016