Rig is a GAP package for computations related to racks, quandles, Nichols algebras.

Features

• groups associated to finite racks and quandles
• rack and quandle homology
• complete list of non-isomorphic indecomposable quandles of order < 36
• Nelson's polynomials invariants
• Nichols algebras

Usage

Follow this link if you don't know how to install the package.

To load the package:

gap> LoadPackage("rig");

If you want to see some examples follow this link.

Download

Latest stable version here, version 0.8.3.

Contributions

You are welcome to contribute with code, patches, ideas, testing, wiki, comments, documentation. Click here to see the list of contributors.

Links

• GAP - Groups, Algorithms, Programming - a System for Computational Discrete Algebra
• GBNP, GAP Package for Gröbner Bases for Non-commutative Polynomials
• Sage: Open Source Mathematics Software