Decompositions into isomorphic rainbow spanning trees

نویسندگان

چکیده

A subgraph of an edge-coloured graph is called rainbow if all its edges have distinct colours. Our main result implies that, given any optimal colouring a sufficiently large complete K2n, there exists decomposition K2n into isomorphic spanning trees. This settles conjectures Brualdi–Hollingsworth (from 1996) and Constantine 2002) for graphs.

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ژورنال

عنوان ژورنال: Journal of Combinatorial Theory, Series B

سال: 2021

ISSN: ['0095-8956', '1096-0902']

DOI: https://doi.org/10.1016/j.jctb.2020.03.002