Biquandles and virtual links

Virtual Knot Theory

Louis H. Kauffman · European Journal of Combinatorics · 1999 · 1K citations

A classifying invariant of knots, the knot quandle

David Joyce · Journal of Pure and Applied Algebra · 1982 · 950 citations

Natural Sciences, Mathematics, Topology +6

RACKS AND LINKS IN CODIMENSION TWO

Roger Fenn, Colin Rourke · Journal of Knot Theory and Its Ramifications · 1992 · 518 citations

Natural Sciences, Computer Science, Mathematics +13

DISTRIBUTIVE GROUPOIDS IN KNOT THEORY

Sergey V. Matveev · Mathematics of the USSR-Sbornik · 1984 · 477 citations

Natural Sciences, Mathematics, Algebra +11

Quandle cohomology and state-sum invariants of knotted curves and surfaces

J. Scott Carter, Daniel Jelsovsky, Seiichi Kamada et al. · Transactions of the American Mathematical Society · 2003 · 424 citations · Full text

Natural Sciences, Mathematics, Geometric Modeling +13