• Title/Summary/Keyword: Tietze transformation

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[ ${\pi}_2$ ] UNDER TIETZE TRANSFORMATIONS

  • Baik, Young-Gheel;Sim, Hyo-Seob
    • East Asian mathematical journal
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    • v.19 no.1
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    • pp.113-120
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    • 2003

  • We study how the second homotopy modules of group presentations are transformed by Tietze transformations and discuss some application.

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