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- W2972575371 abstract "The linear arboricity of a graph G, denoted by la(G), is the minimum number of edge-disjoint linear forests (i.e. forests in which every connected component is a path) in G whose union covers all the edges of G. A famous conjecture due to Akiyama, Exoo, and Harary from 1981 asserts that la(G)≤⌈(Δ(G)+1)/2⌉, where Δ(G) denotes the maximum degree of G. This conjectured upper bound would be best possible, as is easily seen by taking G to be a regular graph. In this paper, we show that for every graph G, la(G)≤Δ2+O(Δ2/3−α) for some α>0, thereby improving the previously best known bound due to Alon and Spencer from 1992. For graphs which are sufficiently good spectral expanders, we give even better bounds. Our proofs of these results further give probabilistic polynomial time algorithms for finding such decompositions into linear forests." @default.
- W2972575371 created "2019-09-19" @default.
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- W2972575371 date "2020-05-01" @default.
- W2972575371 modified "2023-10-14" @default.
- W2972575371 title "Towards the linear arboricity conjecture" @default.
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- W2972575371 doi "https://doi.org/10.1016/j.jctb.2019.08.009" @default.
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