biquandle

English

Etymology

bi- +‎ quandle

Noun

biquandle (plural biquandles)

1. (mathematics) A generalisation of a quandle that is a form of a birack
   • 2015, Sam Nelson, Michael E. Orrison, Veronica Rivera, “Quantum Enhancements and Biquandle Brackets”, in arXiv‎^[1]:

     We provide examples demonstrating that the new invariants are not determined by the biquandle counting invariant, the knot quandle, the knot group or the traditional skein invariants..