H(2)-unknotting operation related to 2-bridge links

Yuanyuan Bao

    Research output: Contribution to journalArticlepeer-review

    4 Citations (Scopus)


    This paper concerns the H(2)-unknotting numbers of links related to 2-bridge links. It consists of three parts. In the first part, we consider a necessary and sufficient condition for a 2-bridge link to have H(2)-unknotting number one. The second part concerns an explicit form of composite links with H(2)-unknotting number one. In the last part, we develop a method of studying the H(2)-unknotting numbers of some tangle unknotting number one knots via 2-bridge knots.

    Original languageEnglish
    Pages (from-to)2158-2167
    Number of pages10
    JournalTopology and its Applications
    Issue number8
    Publication statusPublished - 2012 May 15


    • 2-Bridge link
    • Dehn surgery
    • H(2)-unknotting number
    • Ozsváth-Szabó correction term

    ASJC Scopus subject areas

    • Geometry and Topology


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