2 papers
math.GT2026
Deciding if a shadow resolves into a given link: linear-time algorithms
Andrea Alba, Gelasio Salazar
A {\em shadow} (or {\em projection}) is obtained from a link diagram by ignoring the over/under information at each crossing. Given a fixed link we investigate the complexity o…
math.GT2022
Regular projections of the link L6n1
Andrea Alba, Santino Ramirez, Gelasio Salazar
Given a link projection and a link , it is natural to ask whether it is possible that is a projection of . Taniyama answered this question for the cases in which …