Answers are grounded in this paper and cite their sources.
We show that one can interweave an unknot into any non-alternating connected projection of a link so that the resulting augmented projection is alternating. As a corollary, we strengthen a result of Myers in the case of link complements in S3.
No takes yet. Share an insight, caveat, or question.
Ryan Blair (2009) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: