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    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/122479

    Title: The circular chromatic numbers of signed series-parallel graphs
    Authors: Pan, Zhishi;Zhu, Xuding
    Keywords: Circular chromatic number;Signed graph;Series-parallel graph
    Date: 2022-03
    Issue Date: 2022-03-10 12:13:17 (UTC+8)
    Publisher: Simone Munao
    Abstract: It is known that any signed series-parallel graph (G,σ) has circular chromatic number at most 10/3. This paper proves that for each rational r ∈ [2, 10/3], there is a signed series-parallel graph (G,σ) whose circular chromatic number equals r.
    Relation: Discrete Mathematics 345(3), 112733
    DOI: 10.1016/j.disc.2021.112733
    Appears in Collections:[Graduate Institute & Department of Mathematics] Journal Article

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