Packing circuits in Eulerian digraphs

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21 Scopus citations


Let G be an eulerian digraph; let ν(G) be the maximum number of pairwise edge-disjoint directed circuits of G, and τ(G) the smallest size of a set of edges that meets all directed circuits of G. Borobia, Nutov and Penn showed that ν(G) need not be equal to τ(G). We show that ν(G) = τ(G) provided that G has a "linkless" embedding in 3-space, or equivalently, if no minor of G can be converted to K6 by Δ - Y and Y - Δ operations.

Original languageEnglish (US)
Pages (from-to)223-231
Number of pages9
Issue number2
StatePublished - 1996
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Discrete Mathematics and Combinatorics
  • Computational Mathematics


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