Ribbonness of a stable-ribbon surface-link, I. A stably trivial surface-link

Akio Kawauchi

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arXiv · 1804.02654

Ribbonness of a stable-ribbon surface-link, I. A stably trivial surface-link

Akio Kawauchi

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Abstract

There is a question asking whether a handle-irreducible summand of every stable-ribbon surface-link is a unique ribbon surface-link. This question for the case of a trivial surface-link is affirmatively answered. That is, a handle-irreducible summand of every stably trivial surface-link is only a trivial 2-link. By combining this result with an old result of F. Hosowaka and the author that every surface-knot with infinite cyclic fundamental group is a stably trivial surface-knot, it is concluded that every surface-knot with infinite cyclic fundamental group is a trivial (i.e., an unknotted) surface-knot.

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Akio Kawauchi. 2018-04-08. Ribbonness of a stable-ribbon surface-link, I. A stably trivial surface-link. https://arxiv.org/abs/1804.02654

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