Igor M. Nikonov -- On crossoid structure on knots
Автор: ktrt-seminars
Загружено: 2026-02-10
Просмотров: 17
Описание: We define a structure called crossoid for description of colorings of the crossings in knots diagrams. Crossoids generalize parities in knot theory introduced by V.O. Manturov. On the other hand, any biquandle induces a crossoid structure. We give a topological description of the fundamental crossoid of a knot, and define a crossoid cocycle invariant of knots valued in crossoid cohomology.
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