Geodesic
Efficient proper embedding of a daisy cube
Ars Mathematica Contemporanea, Tome 21 (2021) no. 2, article no. 07, 12 p.

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For a set X of binary words of length h the daisy cube Qh(X) is defined as the subgraph of the hypercube Qh induced by the set of all vertices on shortest paths that connect vertices of X with the vertex 0h. A vertex in the intersection of all of these paths is a minimal vertex of a daisy cube. A graph G isomorphic to a daisy cube admits several isometric embeddings into a hypercube. We show that an isometric embedding is proper if and only if the label 0h is assigned to a minimal vertex of G. This result allows us to devise an algorithm which finds a proper embedding of a graph isomorphic to a daisy cube into a hypercube in linear time.
DOI : 10.26493/1855-3974.2454.892
Keywords: Daisy cube, partial cube, isometric embedding, proper embedding 
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Aleksander Vesel. Efficient proper embedding of a daisy cube. Ars Mathematica Contemporanea, Tome 21 (2021) no. 2, article  no. 07, 12 p. doi : 10.26493/1855-3974.2454.892. http://geodesic.mathdoc.fr/articles/10.26493/1855-3974.2454.892/

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