Journal of Mathematical Techniques and Computational Mathematics(JMTCM)
ISSN: 2834-7706 | DOI: 10.33140/JMTCM
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Another Proof of Free Ribbon Lemma
Abstract
Akio Kawauchi
Free ribbon lemma that every free sphere-link in the 4-sphere is a ribbon sphere-link is shown in an earlier paper by the author. In this paper, another proof of this lemma is given.